#StackBounty: #keyboard #kubuntu #shutdown #asus #libinput Keyboard not working after shutdown (ASUS Zenbook 13 OLED UM325S)

Bounty: 100

I just installed ubuntu 20.04 on my new ASUS Zenbook 13 OLED UM325S. Initially, the keyboard was not working during installation time but I try to install it with an external keyboard and it works fine.

I also tried to install packages like:

sudo apt-get install xserver-xorg-input-all

But it does not help.

Now the issue is when I power on laptop keyboard is not working. On the login page, I have to click on the restart button after restart keyboard works fine.

Any solution ?

Thanks


Get this bounty!!!

#StackBounty: #kubuntu #steam #21.04 Why is "x86/split lock detection" spamming my syslog when Steam is running?

Bounty: 50

I have a ThinkPad X1C9 laptop connected to 3 displays via thunderbolt and an nVidia 1050Ti in an external GPU enclosure. My syslog is getting spammed with the following, why?

Googling CJobMgr led me to Steam. Closed Steam and it stopped. If I open Steam again it starts happening immediately.

[Tue Aug 10 10:17:42 2021] x86/split lock detection: #AC: CJobMgr::m_Work/28558 took a split_lock trap at address: 0xf21b3263
[Tue Aug 10 10:17:43 2021] x86/split lock detection: #AC: CJobMgr::m_Work/28520 took a split_lock trap at address: 0xf21b3263
[Tue Aug 10 10:17:43 2021] x86/split lock detection: #AC: CJobMgr::m_Work/28520 took a split_lock trap at address: 0xf21b3263
[Tue Aug 10 10:17:43 2021] x86/split lock detection: #AC: CJobMgr::m_Work/28558 took a split_lock trap at address: 0xf21b3263
[Tue Aug 10 10:17:44 2021] x86/split lock detection: #AC: CJobMgr::m_Work/28520 took a split_lock trap at address: 0xf21b3263
[Tue Aug 10 10:17:45 2021] x86/split lock detection: #AC: CJobMgr::m_Work/28558 took a split_lock trap at address: 0xf21b3263
alan@ac:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 21.04
Release:        21.04
Codename:       hirsute
alan@ac:~$ uname -a
Linux ac 5.11.0-25-generic #27-Ubuntu SMP Fri Jul 9 23:06:29 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux

I have found the following resources during my search but they haven’t helped:

I have filed an issue upstream with the Steam client, as it’s the only thing that triggers this issue:


Get this bounty!!!

#StackBounty: #kubuntu #21.04 Why is "x86/split lock detection" spamming my syslog

Bounty: 50

I have a ThinkPad X1C9 laptop connected to 3 displays via thunderbolt and an nVidia 1050Ti in an external GPU enclosure. My syslog is getting spammed with the following, why?

[Tue Aug 10 10:17:42 2021] x86/split lock detection: #AC: CJobMgr::m_Work/28558 took a split_lock trap at address: 0xf21b3263
[Tue Aug 10 10:17:43 2021] x86/split lock detection: #AC: CJobMgr::m_Work/28520 took a split_lock trap at address: 0xf21b3263
[Tue Aug 10 10:17:43 2021] x86/split lock detection: #AC: CJobMgr::m_Work/28520 took a split_lock trap at address: 0xf21b3263
[Tue Aug 10 10:17:43 2021] x86/split lock detection: #AC: CJobMgr::m_Work/28558 took a split_lock trap at address: 0xf21b3263
[Tue Aug 10 10:17:44 2021] x86/split lock detection: #AC: CJobMgr::m_Work/28520 took a split_lock trap at address: 0xf21b3263
[Tue Aug 10 10:17:45 2021] x86/split lock detection: #AC: CJobMgr::m_Work/28558 took a split_lock trap at address: 0xf21b3263
alan@ac:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 21.04
Release:        21.04
Codename:       hirsute
alan@ac:~$ uname -a
Linux ac 5.11.0-25-generic #27-Ubuntu SMP Fri Jul 9 23:06:29 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux


Get this bounty!!!

#StackBounty: #kubuntu Can't identify app info from a aspecific window

Bounty: 50

I try to identify source of window that freeze, but without luck :

[andrii@andrii-Aspire-A517-51G ~]$ xprop | awk -F'=' '/_NET_WM_PID/ {print $2}' | xargs ps
    PID TTY          TIME CMD
   8434 pts/0    00:00:00 bash
 967972 pts/0    00:00:00 xargs
 967991 pts/0    00:00:00 ps
[andrii@andrii-Aspire-A517-51G ~]$ xprop | awk -F'=' '/_NET_WM_PID/ {print $2}' 

[andrii@andrii-Aspire-A517-51G ~]$ 

app

Also, this ^ app skip taskbar.

enter image description here

cat /etc/os-release

NAME="Ubuntu"
VERSION="20.04.2 LTS (Focal Fossa)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 20.04.2 LTS"
VERSION_ID="20.04"
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
VERSION_CODENAME=focal
UBUNTU_CODENAME=focal
wmctrl -l -p -x
X Error of failed request:  BadWindow (invalid Window parameter)
  Major opcode of failed request:  20 (X_GetProperty)
  Resource id in failed request:  0x6a0bec9
  Serial number of failed request:  13
  Current serial number in output stream:  13

$  wmctrl -m
Name: Openbox
Class: 
PID: N/A
Window manager's "showing the desktop" mode: OFF

$ env | grep -i desktop
XDG_SESSION_PATH=/org/freedesktop/DisplayManager/Session2
DESKTOP_SESSION=plasma
XDG_SESSION_DESKTOP=plasma
XDG_CURRENT_DESKTOP=KDE
XDG_SEAT_PATH=/org/freedesktop/DisplayManager/Seat0
XDG_DATA_DIRS=/usr/share/plasma:/home/andrii/.local/share/flatpak/exports/share:/var/lib/flatpak/exports/share:/usr/local/share:/usr/share:/var/lib/snapd/desktop

$
xwininfo: Please select the window about which you
          would like information by clicking the
          mouse in that window.

xwininfo: Window id: 0x44185cd (has no name)

  Root window id: 0x9a4 (the root window) (has no name)
  Parent window id: 0x9a4 (the root window) (has no name)
     55 children:
     0x4418619 (has no name): ()  1x1+0+0  +401+244
     0x4418618 (has no name): ()  1x1+0+0  +401+244
     0x4418617 (has no name): ()  1x1+0+0  +401+244
     0x4418616 (has no name): ()  1x1+0+0  +401+244
     0x4418615 (has no name): ()  1x1+0+0  +401+244
     0x4418614 (has no name): ()  1x1+0+0  +401+244
     0x4418613 (has no name): ()  1x1+0+0  +401+244
     0x4418612 (has no name): ()  1x1+0+0  +401+244
     0x4418611 (has no name): ()  1x1+0+0  +401+244
     0x4418610 (has no name): ()  1x1+0+0  +401+244
     0x441860f (has no name): ()  1x1+0+0  +401+244
     0x441860e (has no name): ()  1x1+0+0  +401+244
     0x441860d (has no name): ()  1x1+0+0  +401+244
     0x441860c (has no name): ()  1x1+0+0  +401+244
     0x441860b (has no name): ()  1x1+0+0  +401+244
     0x441860a (has no name): ()  1x1+0+0  +401+244
     0x4418609 (has no name): ()  1x1+0+0  +401+244
     0x4418608 (has no name): ()  1x1+0+0  +401+244
     0x4418607 (has no name): ()  1x1+0+0  +401+244
     0x4418606 (has no name): ()  1x1+0+0  +401+244
     0x4418605 (has no name): ()  1x1+0+0  +401+244
     0x4418604 (has no name): ()  1x1+0+0  +401+244
     0x4418603 (has no name): ()  1x1+0+0  +401+244
     0x4418602 (has no name): ()  1x1+0+0  +401+244
     0x4418601 (has no name): ()  1x1+0+0  +401+244
     0x4418600 (has no name): ()  1x1+0+0  +401+244
     0x44185ff (has no name): ()  1x1+0+0  +401+244
     0x44185fe (has no name): ()  1x1+0+0  +401+244
     0x44185fd (has no name): ()  1x1+0+0  +401+244
     0x44185fc (has no name): ()  1x1+0+0  +401+244
     0x44185fb (has no name): ()  1x1+0+0  +401+244
     0x44185fa (has no name): ()  1x1+0+0  +401+244
     0x44185f9 (has no name): ()  26x1+1891+1043  +2292+1287
     0x44185f8 (has no name): ()  26x1+1891+1038  +2292+1282
     0x44185f7 (has no name): ()  1x25+1917+1019  +2318+1263
     0x44185f6 (has no name): ()  26x1+1+1043  +402+1287
     0x44185f5 (has no name): ()  26x1+1+1038  +402+1282
     0x44185f4 (has no name): ()  1x25+0+1019  +401+1263
     0x44185f3 (has no name): ()  1864x1+27+1043  +428+1287
     0x44185f2 (has no name): ()  1864x1+27+1038  +428+1282
     0x44185ed (has no name): ()  1916x4+1+1039  +402+1283
        4 children:
        0x44185f1 (has no name): ()  1x4+1890+0  +2292+1283
        0x44185f0 (has no name): ()  1x4+25+0  +427+1283
        0x44185ef (has no name): ()  25x4+1891+0  +2293+1283
        0x44185ee (has no name): ()  25x4+0+0  +402+1283
     0x44185e5 (has no name): ()  1x994+1917+26  +2318+270
     0x44185e4 (has no name): ()  1x994+0+26  +401+270
     0x44185de (has no name): ()  1916x1+1+23  +402+267
     0x44185dd (has no name): ()  1x25+1917+1  +2318+245
     0x44185dc (has no name): ()  26x1+1892+0  +2293+244
     0x44185db (has no name): ()  26x1+0+0  +401+244
     0x44185da (has no name): ()  1866x1+26+0  +427+244
     0x44185d9 (has no name): ()  1x25+0+1  +401+245
     0x44185d8 (has no name): ()  1916x22+1+1  +402+245
        12 children:
        0x44185ec (has no name): ()  18x18+1856+2  +2258+247
        0x44185eb (has no name): ()  20x20+2+1  +404+246
        0x44185ea (has no name): ()  18x18+0+0  +402+245
        0x44185e9 (has no name): ()  18x18+0+0  +402+245
        0x44185e8 (has no name): ()  18x18+1896+2  +2298+247
        0x44185e7 (has no name): ()  18x18+1876+2  +2278+247
        0x44185e6 (has no name): ()  1792x20+62+1  +464+246
        0x44185e3 (has no name): ()  2x22+1914+0  +2316+245
        0x44185e2 (has no name): ()  25x2+1891+0  +2293+245
        0x44185e1 (has no name): ()  2x22+0+0  +402+245
        0x44185e0 (has no name): ()  25x2+0+0  +402+245
        0x44185df (has no name): ()  1866x2+25+0  +427+245
     0x44185d3 (has no name): ()  1916x1+1+1037  +402+1281
        2 children:
        0x44185d5 (has no name): ()  26x1+1890+0  +2292+1281
        0x44185d4 (has no name): ()  26x1+0+0  +402+1281
     0x44185d2 (has no name): ()  1x1012+1916+25  +2317+269
        1 child:
        0x44185d7 (has no name): ()  1x18+0+994  +2317+1263
     0x44185d1 (has no name): ()  1916x1+1+24  +402+268
     0x44185d0 (has no name): ()  1x1012+1+25  +402+269
        1 child:
        0x44185d6 (has no name): ()  1x18+0+994  +402+1263
     0x44185ce (has no name): ()  1914x1012+2+25  +403+269
        1 child:
        0x44185cf (has no name): ()  1914x1012+0+0  +403+269

  Absolute upper-left X:  401
  Absolute upper-left Y:  244
  Relative upper-left X:  401
  Relative upper-left Y:  244
  Width: 1918
  Height: 1044
  Depth: 24
  Visual: 0x21
  Visual Class: TrueColor
  Border width: 0
  Class: InputOutput
  Colormap: 0x20 (installed)
  Bit Gravity State: ForgetGravity
  Window Gravity State: NorthWestGravity
  Backing Store State: NotUseful
  Save Under State: no
  Map State: IsViewable
  Override Redirect State: no
  Corners:  +401+244  --399+244  --399--208  +401--208
  -geometry 1918x1044+401+244

  Bit gravity: ForgetGravity
  Window gravity: NorthWestGravity
  Backing-store hint: NotUseful
  Backing-planes to be preserved: 0xffffffff
  Backing pixel: 0
  Save-unders: No

  Someone wants these events:
      ButtonPress
      ButtonRelease
      EnterWindow
      LeaveWindow
      SubstructureRedirect
      FocusChange
  Do not propagate these events:
  Override redirection?: No

  No window manager hints defined
  Window manager hints:
      Process id: (unknown)

  No normal window size hints defined
  No zoom window size hints defined

  No window shape defined
  No border shape defined

upd. I xkill this window and this is compare of ps faux before and after:

https://paste.ubuntu.com/p/2Rf9Kzjpw7/

https://paste.ubuntu.com/p/8rwZySP9Vc/

xwininfo -tree -root | pastebinit  

https://paste.ubuntu.com/p/krDy9QwDq3/

(defined id 0x44185cd)

 xprop -root|grep ^_NET_CLIENT_LIST | pastebinit 

https://paste.ubuntu.com/p/FVYhCzkkQj/

wmctrl -l | pastebinit                                                                                                                                                   3  12:57 
X Error of failed request:  BadWindow (invalid Window parameter)
  Major opcode of failed request:  20 (X_GetProperty)
  Resource id in failed request:  0x6a0bec9
  Serial number of failed request:  13
  Current serial number in output stream:  13
You are trying to send an empty document, exiting.

xlsclients | pastebinit    

https://paste.ubuntu.com/p/4gsvZ75JVt/


Get this bounty!!!

#StackBounty: #kubuntu Can't identify app info from a aspecific window

Bounty: 50

I try to identify source of window that freeze, but without luck :

[andrii@andrii-Aspire-A517-51G ~]$ xprop | awk -F'=' '/_NET_WM_PID/ {print $2}' | xargs ps
    PID TTY          TIME CMD
   8434 pts/0    00:00:00 bash
 967972 pts/0    00:00:00 xargs
 967991 pts/0    00:00:00 ps
[andrii@andrii-Aspire-A517-51G ~]$ xprop | awk -F'=' '/_NET_WM_PID/ {print $2}' 

[andrii@andrii-Aspire-A517-51G ~]$ 

app

Also, this ^ app skip taskbar.

enter image description here

cat /etc/os-release

NAME="Ubuntu"
VERSION="20.04.2 LTS (Focal Fossa)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 20.04.2 LTS"
VERSION_ID="20.04"
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
VERSION_CODENAME=focal
UBUNTU_CODENAME=focal
wmctrl -l -p -x
X Error of failed request:  BadWindow (invalid Window parameter)
  Major opcode of failed request:  20 (X_GetProperty)
  Resource id in failed request:  0x6a0bec9
  Serial number of failed request:  13
  Current serial number in output stream:  13

$  wmctrl -m
Name: Openbox
Class: 
PID: N/A
Window manager's "showing the desktop" mode: OFF

$ env | grep -i desktop
XDG_SESSION_PATH=/org/freedesktop/DisplayManager/Session2
DESKTOP_SESSION=plasma
XDG_SESSION_DESKTOP=plasma
XDG_CURRENT_DESKTOP=KDE
XDG_SEAT_PATH=/org/freedesktop/DisplayManager/Seat0
XDG_DATA_DIRS=/usr/share/plasma:/home/andrii/.local/share/flatpak/exports/share:/var/lib/flatpak/exports/share:/usr/local/share:/usr/share:/var/lib/snapd/desktop

$
xwininfo: Please select the window about which you
          would like information by clicking the
          mouse in that window.

xwininfo: Window id: 0x44185cd (has no name)

  Root window id: 0x9a4 (the root window) (has no name)
  Parent window id: 0x9a4 (the root window) (has no name)
     55 children:
     0x4418619 (has no name): ()  1x1+0+0  +401+244
     0x4418618 (has no name): ()  1x1+0+0  +401+244
     0x4418617 (has no name): ()  1x1+0+0  +401+244
     0x4418616 (has no name): ()  1x1+0+0  +401+244
     0x4418615 (has no name): ()  1x1+0+0  +401+244
     0x4418614 (has no name): ()  1x1+0+0  +401+244
     0x4418613 (has no name): ()  1x1+0+0  +401+244
     0x4418612 (has no name): ()  1x1+0+0  +401+244
     0x4418611 (has no name): ()  1x1+0+0  +401+244
     0x4418610 (has no name): ()  1x1+0+0  +401+244
     0x441860f (has no name): ()  1x1+0+0  +401+244
     0x441860e (has no name): ()  1x1+0+0  +401+244
     0x441860d (has no name): ()  1x1+0+0  +401+244
     0x441860c (has no name): ()  1x1+0+0  +401+244
     0x441860b (has no name): ()  1x1+0+0  +401+244
     0x441860a (has no name): ()  1x1+0+0  +401+244
     0x4418609 (has no name): ()  1x1+0+0  +401+244
     0x4418608 (has no name): ()  1x1+0+0  +401+244
     0x4418607 (has no name): ()  1x1+0+0  +401+244
     0x4418606 (has no name): ()  1x1+0+0  +401+244
     0x4418605 (has no name): ()  1x1+0+0  +401+244
     0x4418604 (has no name): ()  1x1+0+0  +401+244
     0x4418603 (has no name): ()  1x1+0+0  +401+244
     0x4418602 (has no name): ()  1x1+0+0  +401+244
     0x4418601 (has no name): ()  1x1+0+0  +401+244
     0x4418600 (has no name): ()  1x1+0+0  +401+244
     0x44185ff (has no name): ()  1x1+0+0  +401+244
     0x44185fe (has no name): ()  1x1+0+0  +401+244
     0x44185fd (has no name): ()  1x1+0+0  +401+244
     0x44185fc (has no name): ()  1x1+0+0  +401+244
     0x44185fb (has no name): ()  1x1+0+0  +401+244
     0x44185fa (has no name): ()  1x1+0+0  +401+244
     0x44185f9 (has no name): ()  26x1+1891+1043  +2292+1287
     0x44185f8 (has no name): ()  26x1+1891+1038  +2292+1282
     0x44185f7 (has no name): ()  1x25+1917+1019  +2318+1263
     0x44185f6 (has no name): ()  26x1+1+1043  +402+1287
     0x44185f5 (has no name): ()  26x1+1+1038  +402+1282
     0x44185f4 (has no name): ()  1x25+0+1019  +401+1263
     0x44185f3 (has no name): ()  1864x1+27+1043  +428+1287
     0x44185f2 (has no name): ()  1864x1+27+1038  +428+1282
     0x44185ed (has no name): ()  1916x4+1+1039  +402+1283
        4 children:
        0x44185f1 (has no name): ()  1x4+1890+0  +2292+1283
        0x44185f0 (has no name): ()  1x4+25+0  +427+1283
        0x44185ef (has no name): ()  25x4+1891+0  +2293+1283
        0x44185ee (has no name): ()  25x4+0+0  +402+1283
     0x44185e5 (has no name): ()  1x994+1917+26  +2318+270
     0x44185e4 (has no name): ()  1x994+0+26  +401+270
     0x44185de (has no name): ()  1916x1+1+23  +402+267
     0x44185dd (has no name): ()  1x25+1917+1  +2318+245
     0x44185dc (has no name): ()  26x1+1892+0  +2293+244
     0x44185db (has no name): ()  26x1+0+0  +401+244
     0x44185da (has no name): ()  1866x1+26+0  +427+244
     0x44185d9 (has no name): ()  1x25+0+1  +401+245
     0x44185d8 (has no name): ()  1916x22+1+1  +402+245
        12 children:
        0x44185ec (has no name): ()  18x18+1856+2  +2258+247
        0x44185eb (has no name): ()  20x20+2+1  +404+246
        0x44185ea (has no name): ()  18x18+0+0  +402+245
        0x44185e9 (has no name): ()  18x18+0+0  +402+245
        0x44185e8 (has no name): ()  18x18+1896+2  +2298+247
        0x44185e7 (has no name): ()  18x18+1876+2  +2278+247
        0x44185e6 (has no name): ()  1792x20+62+1  +464+246
        0x44185e3 (has no name): ()  2x22+1914+0  +2316+245
        0x44185e2 (has no name): ()  25x2+1891+0  +2293+245
        0x44185e1 (has no name): ()  2x22+0+0  +402+245
        0x44185e0 (has no name): ()  25x2+0+0  +402+245
        0x44185df (has no name): ()  1866x2+25+0  +427+245
     0x44185d3 (has no name): ()  1916x1+1+1037  +402+1281
        2 children:
        0x44185d5 (has no name): ()  26x1+1890+0  +2292+1281
        0x44185d4 (has no name): ()  26x1+0+0  +402+1281
     0x44185d2 (has no name): ()  1x1012+1916+25  +2317+269
        1 child:
        0x44185d7 (has no name): ()  1x18+0+994  +2317+1263
     0x44185d1 (has no name): ()  1916x1+1+24  +402+268
     0x44185d0 (has no name): ()  1x1012+1+25  +402+269
        1 child:
        0x44185d6 (has no name): ()  1x18+0+994  +402+1263
     0x44185ce (has no name): ()  1914x1012+2+25  +403+269
        1 child:
        0x44185cf (has no name): ()  1914x1012+0+0  +403+269

  Absolute upper-left X:  401
  Absolute upper-left Y:  244
  Relative upper-left X:  401
  Relative upper-left Y:  244
  Width: 1918
  Height: 1044
  Depth: 24
  Visual: 0x21
  Visual Class: TrueColor
  Border width: 0
  Class: InputOutput
  Colormap: 0x20 (installed)
  Bit Gravity State: ForgetGravity
  Window Gravity State: NorthWestGravity
  Backing Store State: NotUseful
  Save Under State: no
  Map State: IsViewable
  Override Redirect State: no
  Corners:  +401+244  --399+244  --399--208  +401--208
  -geometry 1918x1044+401+244

  Bit gravity: ForgetGravity
  Window gravity: NorthWestGravity
  Backing-store hint: NotUseful
  Backing-planes to be preserved: 0xffffffff
  Backing pixel: 0
  Save-unders: No

  Someone wants these events:
      ButtonPress
      ButtonRelease
      EnterWindow
      LeaveWindow
      SubstructureRedirect
      FocusChange
  Do not propagate these events:
  Override redirection?: No

  No window manager hints defined
  Window manager hints:
      Process id: (unknown)

  No normal window size hints defined
  No zoom window size hints defined

  No window shape defined
  No border shape defined

upd. I xkill this window and this is compare of ps faux before and after:

https://paste.ubuntu.com/p/2Rf9Kzjpw7/

https://paste.ubuntu.com/p/8rwZySP9Vc/

xwininfo -tree -root | pastebinit  

https://paste.ubuntu.com/p/krDy9QwDq3/

(defined id 0x44185cd)

 xprop -root|grep ^_NET_CLIENT_LIST | pastebinit 

https://paste.ubuntu.com/p/FVYhCzkkQj/

wmctrl -l | pastebinit                                                                                                                                                   3  12:57 
X Error of failed request:  BadWindow (invalid Window parameter)
  Major opcode of failed request:  20 (X_GetProperty)
  Resource id in failed request:  0x6a0bec9
  Serial number of failed request:  13
  Current serial number in output stream:  13
You are trying to send an empty document, exiting.

xlsclients | pastebinit    

https://paste.ubuntu.com/p/4gsvZ75JVt/


Get this bounty!!!

#StackBounty: #kubuntu Can't identify app info from a aspecific window

Bounty: 50

I try to identify source of window that freeze, but without luck :

[andrii@andrii-Aspire-A517-51G ~]$ xprop | awk -F'=' '/_NET_WM_PID/ {print $2}' | xargs ps
    PID TTY          TIME CMD
   8434 pts/0    00:00:00 bash
 967972 pts/0    00:00:00 xargs
 967991 pts/0    00:00:00 ps
[andrii@andrii-Aspire-A517-51G ~]$ xprop | awk -F'=' '/_NET_WM_PID/ {print $2}' 

[andrii@andrii-Aspire-A517-51G ~]$ 

app

Also, this ^ app skip taskbar.

enter image description here

cat /etc/os-release

NAME="Ubuntu"
VERSION="20.04.2 LTS (Focal Fossa)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 20.04.2 LTS"
VERSION_ID="20.04"
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
VERSION_CODENAME=focal
UBUNTU_CODENAME=focal
wmctrl -l -p -x
X Error of failed request:  BadWindow (invalid Window parameter)
  Major opcode of failed request:  20 (X_GetProperty)
  Resource id in failed request:  0x6a0bec9
  Serial number of failed request:  13
  Current serial number in output stream:  13

$  wmctrl -m
Name: Openbox
Class: 
PID: N/A
Window manager's "showing the desktop" mode: OFF

$ env | grep -i desktop
XDG_SESSION_PATH=/org/freedesktop/DisplayManager/Session2
DESKTOP_SESSION=plasma
XDG_SESSION_DESKTOP=plasma
XDG_CURRENT_DESKTOP=KDE
XDG_SEAT_PATH=/org/freedesktop/DisplayManager/Seat0
XDG_DATA_DIRS=/usr/share/plasma:/home/andrii/.local/share/flatpak/exports/share:/var/lib/flatpak/exports/share:/usr/local/share:/usr/share:/var/lib/snapd/desktop

$
xwininfo: Please select the window about which you
          would like information by clicking the
          mouse in that window.

xwininfo: Window id: 0x44185cd (has no name)

  Root window id: 0x9a4 (the root window) (has no name)
  Parent window id: 0x9a4 (the root window) (has no name)
     55 children:
     0x4418619 (has no name): ()  1x1+0+0  +401+244
     0x4418618 (has no name): ()  1x1+0+0  +401+244
     0x4418617 (has no name): ()  1x1+0+0  +401+244
     0x4418616 (has no name): ()  1x1+0+0  +401+244
     0x4418615 (has no name): ()  1x1+0+0  +401+244
     0x4418614 (has no name): ()  1x1+0+0  +401+244
     0x4418613 (has no name): ()  1x1+0+0  +401+244
     0x4418612 (has no name): ()  1x1+0+0  +401+244
     0x4418611 (has no name): ()  1x1+0+0  +401+244
     0x4418610 (has no name): ()  1x1+0+0  +401+244
     0x441860f (has no name): ()  1x1+0+0  +401+244
     0x441860e (has no name): ()  1x1+0+0  +401+244
     0x441860d (has no name): ()  1x1+0+0  +401+244
     0x441860c (has no name): ()  1x1+0+0  +401+244
     0x441860b (has no name): ()  1x1+0+0  +401+244
     0x441860a (has no name): ()  1x1+0+0  +401+244
     0x4418609 (has no name): ()  1x1+0+0  +401+244
     0x4418608 (has no name): ()  1x1+0+0  +401+244
     0x4418607 (has no name): ()  1x1+0+0  +401+244
     0x4418606 (has no name): ()  1x1+0+0  +401+244
     0x4418605 (has no name): ()  1x1+0+0  +401+244
     0x4418604 (has no name): ()  1x1+0+0  +401+244
     0x4418603 (has no name): ()  1x1+0+0  +401+244
     0x4418602 (has no name): ()  1x1+0+0  +401+244
     0x4418601 (has no name): ()  1x1+0+0  +401+244
     0x4418600 (has no name): ()  1x1+0+0  +401+244
     0x44185ff (has no name): ()  1x1+0+0  +401+244
     0x44185fe (has no name): ()  1x1+0+0  +401+244
     0x44185fd (has no name): ()  1x1+0+0  +401+244
     0x44185fc (has no name): ()  1x1+0+0  +401+244
     0x44185fb (has no name): ()  1x1+0+0  +401+244
     0x44185fa (has no name): ()  1x1+0+0  +401+244
     0x44185f9 (has no name): ()  26x1+1891+1043  +2292+1287
     0x44185f8 (has no name): ()  26x1+1891+1038  +2292+1282
     0x44185f7 (has no name): ()  1x25+1917+1019  +2318+1263
     0x44185f6 (has no name): ()  26x1+1+1043  +402+1287
     0x44185f5 (has no name): ()  26x1+1+1038  +402+1282
     0x44185f4 (has no name): ()  1x25+0+1019  +401+1263
     0x44185f3 (has no name): ()  1864x1+27+1043  +428+1287
     0x44185f2 (has no name): ()  1864x1+27+1038  +428+1282
     0x44185ed (has no name): ()  1916x4+1+1039  +402+1283
        4 children:
        0x44185f1 (has no name): ()  1x4+1890+0  +2292+1283
        0x44185f0 (has no name): ()  1x4+25+0  +427+1283
        0x44185ef (has no name): ()  25x4+1891+0  +2293+1283
        0x44185ee (has no name): ()  25x4+0+0  +402+1283
     0x44185e5 (has no name): ()  1x994+1917+26  +2318+270
     0x44185e4 (has no name): ()  1x994+0+26  +401+270
     0x44185de (has no name): ()  1916x1+1+23  +402+267
     0x44185dd (has no name): ()  1x25+1917+1  +2318+245
     0x44185dc (has no name): ()  26x1+1892+0  +2293+244
     0x44185db (has no name): ()  26x1+0+0  +401+244
     0x44185da (has no name): ()  1866x1+26+0  +427+244
     0x44185d9 (has no name): ()  1x25+0+1  +401+245
     0x44185d8 (has no name): ()  1916x22+1+1  +402+245
        12 children:
        0x44185ec (has no name): ()  18x18+1856+2  +2258+247
        0x44185eb (has no name): ()  20x20+2+1  +404+246
        0x44185ea (has no name): ()  18x18+0+0  +402+245
        0x44185e9 (has no name): ()  18x18+0+0  +402+245
        0x44185e8 (has no name): ()  18x18+1896+2  +2298+247
        0x44185e7 (has no name): ()  18x18+1876+2  +2278+247
        0x44185e6 (has no name): ()  1792x20+62+1  +464+246
        0x44185e3 (has no name): ()  2x22+1914+0  +2316+245
        0x44185e2 (has no name): ()  25x2+1891+0  +2293+245
        0x44185e1 (has no name): ()  2x22+0+0  +402+245
        0x44185e0 (has no name): ()  25x2+0+0  +402+245
        0x44185df (has no name): ()  1866x2+25+0  +427+245
     0x44185d3 (has no name): ()  1916x1+1+1037  +402+1281
        2 children:
        0x44185d5 (has no name): ()  26x1+1890+0  +2292+1281
        0x44185d4 (has no name): ()  26x1+0+0  +402+1281
     0x44185d2 (has no name): ()  1x1012+1916+25  +2317+269
        1 child:
        0x44185d7 (has no name): ()  1x18+0+994  +2317+1263
     0x44185d1 (has no name): ()  1916x1+1+24  +402+268
     0x44185d0 (has no name): ()  1x1012+1+25  +402+269
        1 child:
        0x44185d6 (has no name): ()  1x18+0+994  +402+1263
     0x44185ce (has no name): ()  1914x1012+2+25  +403+269
        1 child:
        0x44185cf (has no name): ()  1914x1012+0+0  +403+269

  Absolute upper-left X:  401
  Absolute upper-left Y:  244
  Relative upper-left X:  401
  Relative upper-left Y:  244
  Width: 1918
  Height: 1044
  Depth: 24
  Visual: 0x21
  Visual Class: TrueColor
  Border width: 0
  Class: InputOutput
  Colormap: 0x20 (installed)
  Bit Gravity State: ForgetGravity
  Window Gravity State: NorthWestGravity
  Backing Store State: NotUseful
  Save Under State: no
  Map State: IsViewable
  Override Redirect State: no
  Corners:  +401+244  --399+244  --399--208  +401--208
  -geometry 1918x1044+401+244

  Bit gravity: ForgetGravity
  Window gravity: NorthWestGravity
  Backing-store hint: NotUseful
  Backing-planes to be preserved: 0xffffffff
  Backing pixel: 0
  Save-unders: No

  Someone wants these events:
      ButtonPress
      ButtonRelease
      EnterWindow
      LeaveWindow
      SubstructureRedirect
      FocusChange
  Do not propagate these events:
  Override redirection?: No

  No window manager hints defined
  Window manager hints:
      Process id: (unknown)

  No normal window size hints defined
  No zoom window size hints defined

  No window shape defined
  No border shape defined

upd. I xkill this window and this is compare of ps faux before and after:

https://paste.ubuntu.com/p/2Rf9Kzjpw7/

https://paste.ubuntu.com/p/8rwZySP9Vc/


Get this bounty!!!

#StackBounty: #kubuntu Can't identify app info from a aspecific window

Bounty: 50

I try to identify source of window that freeze, but without luck :

[andrii@andrii-Aspire-A517-51G ~]$ xprop | awk -F'=' '/_NET_WM_PID/ {print $2}' | xargs ps
    PID TTY          TIME CMD
   8434 pts/0    00:00:00 bash
 967972 pts/0    00:00:00 xargs
 967991 pts/0    00:00:00 ps
[andrii@andrii-Aspire-A517-51G ~]$ xprop | awk -F'=' '/_NET_WM_PID/ {print $2}' 

[andrii@andrii-Aspire-A517-51G ~]$ 

app

Also, this ^ app skip taskbar.

enter image description here

cat /etc/os-release

NAME="Ubuntu"
VERSION="20.04.2 LTS (Focal Fossa)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 20.04.2 LTS"
VERSION_ID="20.04"
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
VERSION_CODENAME=focal
UBUNTU_CODENAME=focal
wmctrl -l -p -x
X Error of failed request:  BadWindow (invalid Window parameter)
  Major opcode of failed request:  20 (X_GetProperty)
  Resource id in failed request:  0x6a0bec9
  Serial number of failed request:  13
  Current serial number in output stream:  13

$  wmctrl -m
Name: Openbox
Class: 
PID: N/A
Window manager's "showing the desktop" mode: OFF

$ env | grep -i desktop
XDG_SESSION_PATH=/org/freedesktop/DisplayManager/Session2
DESKTOP_SESSION=plasma
XDG_SESSION_DESKTOP=plasma
XDG_CURRENT_DESKTOP=KDE
XDG_SEAT_PATH=/org/freedesktop/DisplayManager/Seat0
XDG_DATA_DIRS=/usr/share/plasma:/home/andrii/.local/share/flatpak/exports/share:/var/lib/flatpak/exports/share:/usr/local/share:/usr/share:/var/lib/snapd/desktop

$
xwininfo: Please select the window about which you
          would like information by clicking the
          mouse in that window.

xwininfo: Window id: 0x44185cd (has no name)

  Root window id: 0x9a4 (the root window) (has no name)
  Parent window id: 0x9a4 (the root window) (has no name)
     55 children:
     0x4418619 (has no name): ()  1x1+0+0  +401+244
     0x4418618 (has no name): ()  1x1+0+0  +401+244
     0x4418617 (has no name): ()  1x1+0+0  +401+244
     0x4418616 (has no name): ()  1x1+0+0  +401+244
     0x4418615 (has no name): ()  1x1+0+0  +401+244
     0x4418614 (has no name): ()  1x1+0+0  +401+244
     0x4418613 (has no name): ()  1x1+0+0  +401+244
     0x4418612 (has no name): ()  1x1+0+0  +401+244
     0x4418611 (has no name): ()  1x1+0+0  +401+244
     0x4418610 (has no name): ()  1x1+0+0  +401+244
     0x441860f (has no name): ()  1x1+0+0  +401+244
     0x441860e (has no name): ()  1x1+0+0  +401+244
     0x441860d (has no name): ()  1x1+0+0  +401+244
     0x441860c (has no name): ()  1x1+0+0  +401+244
     0x441860b (has no name): ()  1x1+0+0  +401+244
     0x441860a (has no name): ()  1x1+0+0  +401+244
     0x4418609 (has no name): ()  1x1+0+0  +401+244
     0x4418608 (has no name): ()  1x1+0+0  +401+244
     0x4418607 (has no name): ()  1x1+0+0  +401+244
     0x4418606 (has no name): ()  1x1+0+0  +401+244
     0x4418605 (has no name): ()  1x1+0+0  +401+244
     0x4418604 (has no name): ()  1x1+0+0  +401+244
     0x4418603 (has no name): ()  1x1+0+0  +401+244
     0x4418602 (has no name): ()  1x1+0+0  +401+244
     0x4418601 (has no name): ()  1x1+0+0  +401+244
     0x4418600 (has no name): ()  1x1+0+0  +401+244
     0x44185ff (has no name): ()  1x1+0+0  +401+244
     0x44185fe (has no name): ()  1x1+0+0  +401+244
     0x44185fd (has no name): ()  1x1+0+0  +401+244
     0x44185fc (has no name): ()  1x1+0+0  +401+244
     0x44185fb (has no name): ()  1x1+0+0  +401+244
     0x44185fa (has no name): ()  1x1+0+0  +401+244
     0x44185f9 (has no name): ()  26x1+1891+1043  +2292+1287
     0x44185f8 (has no name): ()  26x1+1891+1038  +2292+1282
     0x44185f7 (has no name): ()  1x25+1917+1019  +2318+1263
     0x44185f6 (has no name): ()  26x1+1+1043  +402+1287
     0x44185f5 (has no name): ()  26x1+1+1038  +402+1282
     0x44185f4 (has no name): ()  1x25+0+1019  +401+1263
     0x44185f3 (has no name): ()  1864x1+27+1043  +428+1287
     0x44185f2 (has no name): ()  1864x1+27+1038  +428+1282
     0x44185ed (has no name): ()  1916x4+1+1039  +402+1283
        4 children:
        0x44185f1 (has no name): ()  1x4+1890+0  +2292+1283
        0x44185f0 (has no name): ()  1x4+25+0  +427+1283
        0x44185ef (has no name): ()  25x4+1891+0  +2293+1283
        0x44185ee (has no name): ()  25x4+0+0  +402+1283
     0x44185e5 (has no name): ()  1x994+1917+26  +2318+270
     0x44185e4 (has no name): ()  1x994+0+26  +401+270
     0x44185de (has no name): ()  1916x1+1+23  +402+267
     0x44185dd (has no name): ()  1x25+1917+1  +2318+245
     0x44185dc (has no name): ()  26x1+1892+0  +2293+244
     0x44185db (has no name): ()  26x1+0+0  +401+244
     0x44185da (has no name): ()  1866x1+26+0  +427+244
     0x44185d9 (has no name): ()  1x25+0+1  +401+245
     0x44185d8 (has no name): ()  1916x22+1+1  +402+245
        12 children:
        0x44185ec (has no name): ()  18x18+1856+2  +2258+247
        0x44185eb (has no name): ()  20x20+2+1  +404+246
        0x44185ea (has no name): ()  18x18+0+0  +402+245
        0x44185e9 (has no name): ()  18x18+0+0  +402+245
        0x44185e8 (has no name): ()  18x18+1896+2  +2298+247
        0x44185e7 (has no name): ()  18x18+1876+2  +2278+247
        0x44185e6 (has no name): ()  1792x20+62+1  +464+246
        0x44185e3 (has no name): ()  2x22+1914+0  +2316+245
        0x44185e2 (has no name): ()  25x2+1891+0  +2293+245
        0x44185e1 (has no name): ()  2x22+0+0  +402+245
        0x44185e0 (has no name): ()  25x2+0+0  +402+245
        0x44185df (has no name): ()  1866x2+25+0  +427+245
     0x44185d3 (has no name): ()  1916x1+1+1037  +402+1281
        2 children:
        0x44185d5 (has no name): ()  26x1+1890+0  +2292+1281
        0x44185d4 (has no name): ()  26x1+0+0  +402+1281
     0x44185d2 (has no name): ()  1x1012+1916+25  +2317+269
        1 child:
        0x44185d7 (has no name): ()  1x18+0+994  +2317+1263
     0x44185d1 (has no name): ()  1916x1+1+24  +402+268
     0x44185d0 (has no name): ()  1x1012+1+25  +402+269
        1 child:
        0x44185d6 (has no name): ()  1x18+0+994  +402+1263
     0x44185ce (has no name): ()  1914x1012+2+25  +403+269
        1 child:
        0x44185cf (has no name): ()  1914x1012+0+0  +403+269

  Absolute upper-left X:  401
  Absolute upper-left Y:  244
  Relative upper-left X:  401
  Relative upper-left Y:  244
  Width: 1918
  Height: 1044
  Depth: 24
  Visual: 0x21
  Visual Class: TrueColor
  Border width: 0
  Class: InputOutput
  Colormap: 0x20 (installed)
  Bit Gravity State: ForgetGravity
  Window Gravity State: NorthWestGravity
  Backing Store State: NotUseful
  Save Under State: no
  Map State: IsViewable
  Override Redirect State: no
  Corners:  +401+244  --399+244  --399--208  +401--208
  -geometry 1918x1044+401+244

  Bit gravity: ForgetGravity
  Window gravity: NorthWestGravity
  Backing-store hint: NotUseful
  Backing-planes to be preserved: 0xffffffff
  Backing pixel: 0
  Save-unders: No

  Someone wants these events:
      ButtonPress
      ButtonRelease
      EnterWindow
      LeaveWindow
      SubstructureRedirect
      FocusChange
  Do not propagate these events:
  Override redirection?: No

  No window manager hints defined
  Window manager hints:
      Process id: (unknown)

  No normal window size hints defined
  No zoom window size hints defined

  No window shape defined
  No border shape defined

upd. I xkill this window and this is compare of ps faux before and after:

https://paste.ubuntu.com/p/2Rf9Kzjpw7/

https://paste.ubuntu.com/p/8rwZySP9Vc/


Get this bounty!!!

#StackBounty: #kubuntu Can't identify app info from a aspecific window

Bounty: 50

I try to identify source of window that freeze, but without luck :

[andrii@andrii-Aspire-A517-51G ~]$ xprop | awk -F'=' '/_NET_WM_PID/ {print $2}' | xargs ps
    PID TTY          TIME CMD
   8434 pts/0    00:00:00 bash
 967972 pts/0    00:00:00 xargs
 967991 pts/0    00:00:00 ps
[andrii@andrii-Aspire-A517-51G ~]$ xprop | awk -F'=' '/_NET_WM_PID/ {print $2}' 

[andrii@andrii-Aspire-A517-51G ~]$ 

app

Also, this ^ app skip taskbar.

enter image description here

cat /etc/os-release

NAME="Ubuntu"
VERSION="20.04.2 LTS (Focal Fossa)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 20.04.2 LTS"
VERSION_ID="20.04"
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
VERSION_CODENAME=focal
UBUNTU_CODENAME=focal
wmctrl -l -p -x
X Error of failed request:  BadWindow (invalid Window parameter)
  Major opcode of failed request:  20 (X_GetProperty)
  Resource id in failed request:  0x6a0bec9
  Serial number of failed request:  13
  Current serial number in output stream:  13

$  wmctrl -m
Name: Openbox
Class: 
PID: N/A
Window manager's "showing the desktop" mode: OFF

$ env | grep -i desktop
XDG_SESSION_PATH=/org/freedesktop/DisplayManager/Session2
DESKTOP_SESSION=plasma
XDG_SESSION_DESKTOP=plasma
XDG_CURRENT_DESKTOP=KDE
XDG_SEAT_PATH=/org/freedesktop/DisplayManager/Seat0
XDG_DATA_DIRS=/usr/share/plasma:/home/andrii/.local/share/flatpak/exports/share:/var/lib/flatpak/exports/share:/usr/local/share:/usr/share:/var/lib/snapd/desktop

$
xwininfo: Please select the window about which you
          would like information by clicking the
          mouse in that window.

xwininfo: Window id: 0x44185cd (has no name)

  Root window id: 0x9a4 (the root window) (has no name)
  Parent window id: 0x9a4 (the root window) (has no name)
     55 children:
     0x4418619 (has no name): ()  1x1+0+0  +401+244
     0x4418618 (has no name): ()  1x1+0+0  +401+244
     0x4418617 (has no name): ()  1x1+0+0  +401+244
     0x4418616 (has no name): ()  1x1+0+0  +401+244
     0x4418615 (has no name): ()  1x1+0+0  +401+244
     0x4418614 (has no name): ()  1x1+0+0  +401+244
     0x4418613 (has no name): ()  1x1+0+0  +401+244
     0x4418612 (has no name): ()  1x1+0+0  +401+244
     0x4418611 (has no name): ()  1x1+0+0  +401+244
     0x4418610 (has no name): ()  1x1+0+0  +401+244
     0x441860f (has no name): ()  1x1+0+0  +401+244
     0x441860e (has no name): ()  1x1+0+0  +401+244
     0x441860d (has no name): ()  1x1+0+0  +401+244
     0x441860c (has no name): ()  1x1+0+0  +401+244
     0x441860b (has no name): ()  1x1+0+0  +401+244
     0x441860a (has no name): ()  1x1+0+0  +401+244
     0x4418609 (has no name): ()  1x1+0+0  +401+244
     0x4418608 (has no name): ()  1x1+0+0  +401+244
     0x4418607 (has no name): ()  1x1+0+0  +401+244
     0x4418606 (has no name): ()  1x1+0+0  +401+244
     0x4418605 (has no name): ()  1x1+0+0  +401+244
     0x4418604 (has no name): ()  1x1+0+0  +401+244
     0x4418603 (has no name): ()  1x1+0+0  +401+244
     0x4418602 (has no name): ()  1x1+0+0  +401+244
     0x4418601 (has no name): ()  1x1+0+0  +401+244
     0x4418600 (has no name): ()  1x1+0+0  +401+244
     0x44185ff (has no name): ()  1x1+0+0  +401+244
     0x44185fe (has no name): ()  1x1+0+0  +401+244
     0x44185fd (has no name): ()  1x1+0+0  +401+244
     0x44185fc (has no name): ()  1x1+0+0  +401+244
     0x44185fb (has no name): ()  1x1+0+0  +401+244
     0x44185fa (has no name): ()  1x1+0+0  +401+244
     0x44185f9 (has no name): ()  26x1+1891+1043  +2292+1287
     0x44185f8 (has no name): ()  26x1+1891+1038  +2292+1282
     0x44185f7 (has no name): ()  1x25+1917+1019  +2318+1263
     0x44185f6 (has no name): ()  26x1+1+1043  +402+1287
     0x44185f5 (has no name): ()  26x1+1+1038  +402+1282
     0x44185f4 (has no name): ()  1x25+0+1019  +401+1263
     0x44185f3 (has no name): ()  1864x1+27+1043  +428+1287
     0x44185f2 (has no name): ()  1864x1+27+1038  +428+1282
     0x44185ed (has no name): ()  1916x4+1+1039  +402+1283
        4 children:
        0x44185f1 (has no name): ()  1x4+1890+0  +2292+1283
        0x44185f0 (has no name): ()  1x4+25+0  +427+1283
        0x44185ef (has no name): ()  25x4+1891+0  +2293+1283
        0x44185ee (has no name): ()  25x4+0+0  +402+1283
     0x44185e5 (has no name): ()  1x994+1917+26  +2318+270
     0x44185e4 (has no name): ()  1x994+0+26  +401+270
     0x44185de (has no name): ()  1916x1+1+23  +402+267
     0x44185dd (has no name): ()  1x25+1917+1  +2318+245
     0x44185dc (has no name): ()  26x1+1892+0  +2293+244
     0x44185db (has no name): ()  26x1+0+0  +401+244
     0x44185da (has no name): ()  1866x1+26+0  +427+244
     0x44185d9 (has no name): ()  1x25+0+1  +401+245
     0x44185d8 (has no name): ()  1916x22+1+1  +402+245
        12 children:
        0x44185ec (has no name): ()  18x18+1856+2  +2258+247
        0x44185eb (has no name): ()  20x20+2+1  +404+246
        0x44185ea (has no name): ()  18x18+0+0  +402+245
        0x44185e9 (has no name): ()  18x18+0+0  +402+245
        0x44185e8 (has no name): ()  18x18+1896+2  +2298+247
        0x44185e7 (has no name): ()  18x18+1876+2  +2278+247
        0x44185e6 (has no name): ()  1792x20+62+1  +464+246
        0x44185e3 (has no name): ()  2x22+1914+0  +2316+245
        0x44185e2 (has no name): ()  25x2+1891+0  +2293+245
        0x44185e1 (has no name): ()  2x22+0+0  +402+245
        0x44185e0 (has no name): ()  25x2+0+0  +402+245
        0x44185df (has no name): ()  1866x2+25+0  +427+245
     0x44185d3 (has no name): ()  1916x1+1+1037  +402+1281
        2 children:
        0x44185d5 (has no name): ()  26x1+1890+0  +2292+1281
        0x44185d4 (has no name): ()  26x1+0+0  +402+1281
     0x44185d2 (has no name): ()  1x1012+1916+25  +2317+269
        1 child:
        0x44185d7 (has no name): ()  1x18+0+994  +2317+1263
     0x44185d1 (has no name): ()  1916x1+1+24  +402+268
     0x44185d0 (has no name): ()  1x1012+1+25  +402+269
        1 child:
        0x44185d6 (has no name): ()  1x18+0+994  +402+1263
     0x44185ce (has no name): ()  1914x1012+2+25  +403+269
        1 child:
        0x44185cf (has no name): ()  1914x1012+0+0  +403+269

  Absolute upper-left X:  401
  Absolute upper-left Y:  244
  Relative upper-left X:  401
  Relative upper-left Y:  244
  Width: 1918
  Height: 1044
  Depth: 24
  Visual: 0x21
  Visual Class: TrueColor
  Border width: 0
  Class: InputOutput
  Colormap: 0x20 (installed)
  Bit Gravity State: ForgetGravity
  Window Gravity State: NorthWestGravity
  Backing Store State: NotUseful
  Save Under State: no
  Map State: IsViewable
  Override Redirect State: no
  Corners:  +401+244  --399+244  --399--208  +401--208
  -geometry 1918x1044+401+244

  Bit gravity: ForgetGravity
  Window gravity: NorthWestGravity
  Backing-store hint: NotUseful
  Backing-planes to be preserved: 0xffffffff
  Backing pixel: 0
  Save-unders: No

  Someone wants these events:
      ButtonPress
      ButtonRelease
      EnterWindow
      LeaveWindow
      SubstructureRedirect
      FocusChange
  Do not propagate these events:
  Override redirection?: No

  No window manager hints defined
  Window manager hints:
      Process id: (unknown)

  No normal window size hints defined
  No zoom window size hints defined

  No window shape defined
  No border shape defined

upd. I xkill this window and this is compare of ps faux before and after:

https://paste.ubuntu.com/p/2Rf9Kzjpw7/

https://paste.ubuntu.com/p/8rwZySP9Vc/


Get this bounty!!!

#StackBounty: #kubuntu Can't identify app info from a aspecific window

Bounty: 50

I try to identify source of window that freeze, but without luck :

[andrii@andrii-Aspire-A517-51G ~]$ xprop | awk -F'=' '/_NET_WM_PID/ {print $2}' | xargs ps
    PID TTY          TIME CMD
   8434 pts/0    00:00:00 bash
 967972 pts/0    00:00:00 xargs
 967991 pts/0    00:00:00 ps
[andrii@andrii-Aspire-A517-51G ~]$ xprop | awk -F'=' '/_NET_WM_PID/ {print $2}' 

[andrii@andrii-Aspire-A517-51G ~]$ 

app

Also, this ^ app skip taskbar.

enter image description here

cat /etc/os-release

NAME="Ubuntu"
VERSION="20.04.2 LTS (Focal Fossa)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 20.04.2 LTS"
VERSION_ID="20.04"
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
VERSION_CODENAME=focal
UBUNTU_CODENAME=focal
wmctrl -l -p -x
X Error of failed request:  BadWindow (invalid Window parameter)
  Major opcode of failed request:  20 (X_GetProperty)
  Resource id in failed request:  0x6a0bec9
  Serial number of failed request:  13
  Current serial number in output stream:  13

$  wmctrl -m
Name: Openbox
Class: 
PID: N/A
Window manager's "showing the desktop" mode: OFF

$ env | grep -i desktop
XDG_SESSION_PATH=/org/freedesktop/DisplayManager/Session2
DESKTOP_SESSION=plasma
XDG_SESSION_DESKTOP=plasma
XDG_CURRENT_DESKTOP=KDE
XDG_SEAT_PATH=/org/freedesktop/DisplayManager/Seat0
XDG_DATA_DIRS=/usr/share/plasma:/home/andrii/.local/share/flatpak/exports/share:/var/lib/flatpak/exports/share:/usr/local/share:/usr/share:/var/lib/snapd/desktop

$
xwininfo: Please select the window about which you
          would like information by clicking the
          mouse in that window.

xwininfo: Window id: 0x44185cd (has no name)

  Root window id: 0x9a4 (the root window) (has no name)
  Parent window id: 0x9a4 (the root window) (has no name)
     55 children:
     0x4418619 (has no name): ()  1x1+0+0  +401+244
     0x4418618 (has no name): ()  1x1+0+0  +401+244
     0x4418617 (has no name): ()  1x1+0+0  +401+244
     0x4418616 (has no name): ()  1x1+0+0  +401+244
     0x4418615 (has no name): ()  1x1+0+0  +401+244
     0x4418614 (has no name): ()  1x1+0+0  +401+244
     0x4418613 (has no name): ()  1x1+0+0  +401+244
     0x4418612 (has no name): ()  1x1+0+0  +401+244
     0x4418611 (has no name): ()  1x1+0+0  +401+244
     0x4418610 (has no name): ()  1x1+0+0  +401+244
     0x441860f (has no name): ()  1x1+0+0  +401+244
     0x441860e (has no name): ()  1x1+0+0  +401+244
     0x441860d (has no name): ()  1x1+0+0  +401+244
     0x441860c (has no name): ()  1x1+0+0  +401+244
     0x441860b (has no name): ()  1x1+0+0  +401+244
     0x441860a (has no name): ()  1x1+0+0  +401+244
     0x4418609 (has no name): ()  1x1+0+0  +401+244
     0x4418608 (has no name): ()  1x1+0+0  +401+244
     0x4418607 (has no name): ()  1x1+0+0  +401+244
     0x4418606 (has no name): ()  1x1+0+0  +401+244
     0x4418605 (has no name): ()  1x1+0+0  +401+244
     0x4418604 (has no name): ()  1x1+0+0  +401+244
     0x4418603 (has no name): ()  1x1+0+0  +401+244
     0x4418602 (has no name): ()  1x1+0+0  +401+244
     0x4418601 (has no name): ()  1x1+0+0  +401+244
     0x4418600 (has no name): ()  1x1+0+0  +401+244
     0x44185ff (has no name): ()  1x1+0+0  +401+244
     0x44185fe (has no name): ()  1x1+0+0  +401+244
     0x44185fd (has no name): ()  1x1+0+0  +401+244
     0x44185fc (has no name): ()  1x1+0+0  +401+244
     0x44185fb (has no name): ()  1x1+0+0  +401+244
     0x44185fa (has no name): ()  1x1+0+0  +401+244
     0x44185f9 (has no name): ()  26x1+1891+1043  +2292+1287
     0x44185f8 (has no name): ()  26x1+1891+1038  +2292+1282
     0x44185f7 (has no name): ()  1x25+1917+1019  +2318+1263
     0x44185f6 (has no name): ()  26x1+1+1043  +402+1287
     0x44185f5 (has no name): ()  26x1+1+1038  +402+1282
     0x44185f4 (has no name): ()  1x25+0+1019  +401+1263
     0x44185f3 (has no name): ()  1864x1+27+1043  +428+1287
     0x44185f2 (has no name): ()  1864x1+27+1038  +428+1282
     0x44185ed (has no name): ()  1916x4+1+1039  +402+1283
        4 children:
        0x44185f1 (has no name): ()  1x4+1890+0  +2292+1283
        0x44185f0 (has no name): ()  1x4+25+0  +427+1283
        0x44185ef (has no name): ()  25x4+1891+0  +2293+1283
        0x44185ee (has no name): ()  25x4+0+0  +402+1283
     0x44185e5 (has no name): ()  1x994+1917+26  +2318+270
     0x44185e4 (has no name): ()  1x994+0+26  +401+270
     0x44185de (has no name): ()  1916x1+1+23  +402+267
     0x44185dd (has no name): ()  1x25+1917+1  +2318+245
     0x44185dc (has no name): ()  26x1+1892+0  +2293+244
     0x44185db (has no name): ()  26x1+0+0  +401+244
     0x44185da (has no name): ()  1866x1+26+0  +427+244
     0x44185d9 (has no name): ()  1x25+0+1  +401+245
     0x44185d8 (has no name): ()  1916x22+1+1  +402+245
        12 children:
        0x44185ec (has no name): ()  18x18+1856+2  +2258+247
        0x44185eb (has no name): ()  20x20+2+1  +404+246
        0x44185ea (has no name): ()  18x18+0+0  +402+245
        0x44185e9 (has no name): ()  18x18+0+0  +402+245
        0x44185e8 (has no name): ()  18x18+1896+2  +2298+247
        0x44185e7 (has no name): ()  18x18+1876+2  +2278+247
        0x44185e6 (has no name): ()  1792x20+62+1  +464+246
        0x44185e3 (has no name): ()  2x22+1914+0  +2316+245
        0x44185e2 (has no name): ()  25x2+1891+0  +2293+245
        0x44185e1 (has no name): ()  2x22+0+0  +402+245
        0x44185e0 (has no name): ()  25x2+0+0  +402+245
        0x44185df (has no name): ()  1866x2+25+0  +427+245
     0x44185d3 (has no name): ()  1916x1+1+1037  +402+1281
        2 children:
        0x44185d5 (has no name): ()  26x1+1890+0  +2292+1281
        0x44185d4 (has no name): ()  26x1+0+0  +402+1281
     0x44185d2 (has no name): ()  1x1012+1916+25  +2317+269
        1 child:
        0x44185d7 (has no name): ()  1x18+0+994  +2317+1263
     0x44185d1 (has no name): ()  1916x1+1+24  +402+268
     0x44185d0 (has no name): ()  1x1012+1+25  +402+269
        1 child:
        0x44185d6 (has no name): ()  1x18+0+994  +402+1263
     0x44185ce (has no name): ()  1914x1012+2+25  +403+269
        1 child:
        0x44185cf (has no name): ()  1914x1012+0+0  +403+269

  Absolute upper-left X:  401
  Absolute upper-left Y:  244
  Relative upper-left X:  401
  Relative upper-left Y:  244
  Width: 1918
  Height: 1044
  Depth: 24
  Visual: 0x21
  Visual Class: TrueColor
  Border width: 0
  Class: InputOutput
  Colormap: 0x20 (installed)
  Bit Gravity State: ForgetGravity
  Window Gravity State: NorthWestGravity
  Backing Store State: NotUseful
  Save Under State: no
  Map State: IsViewable
  Override Redirect State: no
  Corners:  +401+244  --399+244  --399--208  +401--208
  -geometry 1918x1044+401+244

  Bit gravity: ForgetGravity
  Window gravity: NorthWestGravity
  Backing-store hint: NotUseful
  Backing-planes to be preserved: 0xffffffff
  Backing pixel: 0
  Save-unders: No

  Someone wants these events:
      ButtonPress
      ButtonRelease
      EnterWindow
      LeaveWindow
      SubstructureRedirect
      FocusChange
  Do not propagate these events:
  Override redirection?: No

  No window manager hints defined
  Window manager hints:
      Process id: (unknown)

  No normal window size hints defined
  No zoom window size hints defined

  No window shape defined
  No border shape defined

upd. I xkill this window and this is compare of ps faux before and after:

https://paste.ubuntu.com/p/2Rf9Kzjpw7/

https://paste.ubuntu.com/p/8rwZySP9Vc/


Get this bounty!!!