#StackBounty: #18.04 #hp #webcam #cheese Webcam not working on HP Truvision HD

Bounty: 50

I am using an HP 15-ac650tu.
Any app/google meet says can’t detect any webcam .
Here is the error on calling cheese or sudo cheese. Both of the commands throw the same error on the terminal and the window goes all black.

(cheese:5569): Gtk-WARNING **: 08:55:07.899: Theme parsing error: cheese.css:7:35: The style property GtkScrollbar:min-slider-length is deprecated and shouldn't be used anymore. It will be removed in a future version

** (cheese:5569): CRITICAL **: 08:55:11.980: cheese_preferences_dialog_on_source_change: assertion '_tmp2_ > ((guint) 0)' failed

(cheese:5569): cheese-CRITICAL **: 08:55:11.980: cheese_camera_device_get_name: assertion 'CHEESE_IS_CAMERA_DEVICE (device)' failed

(cheese:5569): GLib-CRITICAL **: 08:55:11.980: g_variant_new_string: assertion 'string != NULL' failed

(cheese:5569): GLib-CRITICAL **: 08:55:11.980: g_variant_ref_sink: assertion 'value != NULL' failed

(cheese:5569): GLib-GIO-CRITICAL **: 08:55:11.980: g_settings_schema_key_type_check: assertion 'value != NULL' failed

(cheese:5569): GLib-CRITICAL **: 08:55:11.981: g_variant_get_type_string: assertion 'value != NULL' failed

(cheese:5569): GLib-GIO-CRITICAL **: 08:55:11.981: g_settings_set_value: key 'camera' in 'org.gnome.Cheese' expects type 's', but a GVariant of type '(null)' was given

(cheese:5569): GLib-CRITICAL **: 08:55:11.981: g_variant_unref: assertion 'value != NULL' failed

** (cheese:5569): CRITICAL **: 08:55:11.981: cheese_preferences_dialog_setup_resolutions_for_device: assertion 'device != NULL' failed

** (cheese:5569): CRITICAL **: 08:55:13.697: cheese_preferences_dialog_on_source_change: assertion '_tmp2_ > ((guint) 0)' failed

(cheese:5569): cheese-CRITICAL **: 08:55:13.698: cheese_camera_device_get_name: assertion 'CHEESE_IS_CAMERA_DEVICE (device)' failed

(cheese:5569): GLib-CRITICAL **: 08:55:13.698: g_variant_new_string: assertion 'string != NULL' failed

(cheese:5569): GLib-CRITICAL **: 08:55:13.698: g_variant_ref_sink: assertion 'value != NULL' failed

(cheese:5569): GLib-GIO-CRITICAL **: 08:55:13.698: g_settings_schema_key_type_check: assertion 'value != NULL' failed

(cheese:5569): GLib-CRITICAL **: 08:55:13.698: g_variant_get_type_string: assertion 'value != NULL' failed

(cheese:5569): GLib-GIO-CRITICAL **: 08:55:13.698: g_settings_set_value: key 'camera' in 'org.gnome.Cheese' expects type 's', but a GVariant of type '(null)' was given

(cheese:5569): GLib-CRITICAL **: 08:55:13.698: g_variant_unref: assertion 'value != NULL' failed

** (cheese:5569): CRITICAL **: 08:55:13.698: cheese_preferences_dialog_setup_resolutions_for_device: assertion 'device != NULL' failed

(cheese:5569): cheese-WARNING **: 08:55:13.752: Could not read from resource.: gstv4l2bufferpool.c(1040): gst_v4l2_buffer_pool_poll (): /GstCameraBin:camerabin/GstWrapperCameraBinSrc:camera_source/GstBin:bin19/GstV4l2Src:v4l2src2:
poll error 1: Invalid argument (22)

Now I have seen some similar questions on the platform but no real solution.
I am on Ubuntu 18.04.5 and here are some more info.

$ hwinfo --usb
08: USB 00.0: 0000 Unclassified device
  [Created at usb.122]
  Unique ID: +rmv.PHDpAsyWur2
  Parent ID: pBe4.2DFUsyrieMD
  SysFS ID: /devices/pci0000:00/0000:00:14.0/usb2/2-5/2-5:1.0
  SysFS BusID: 2-5:1.0
  Hardware Class: unknown
  Model: "Chicony Electronics HP Truevision HD"
  Hotplug: USB
  Vendor: usb 0x04f2 "Chicony Electronics Co., Ltd"
  Device: usb 0xb50a "HP Truevision HD"
  Revision: "19.17"
  Serial ID: "200901010001"
  Driver: "uvcvideo"
  Driver Modules: "uvcvideo"
  Device File: /dev/input/event11
  Device Files: /dev/input/event11, /dev/input/by-id/usb-Generic_HP_Truevision_HD_200901010001-event-if00, /dev/input/by-path/pci-0000:00:14.0-usb-0:5:1.0-event
  Device Number: char 13:75
  Speed: 480 Mbps
  Module Alias: "usb:v04F2pB50Ad1917dcEFdsc02dp01ic0Eisc01ip00in00"
  Driver Info #0:
    Driver Status: uvcvideo is active
    Driver Activation Cmd: "modprobe uvcvideo"
  Config Status: cfg=new, avail=yes, need=no, active=unknown
  Attached to: #16 (Hub)
$ ls -ltr /dev/video*
crw-rw----+ 1 root video 81, 0 Apr 14 08:05
$ lsusb
Bus 001 Device 002: ID 8087:8000 Intel Corp. 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 002 Device 005: ID 04f2:b50a Chicony Electronics Co., Ltd 
Bus 002 Device 004: ID 0bda:b006 Realtek Semiconductor Corp. 
Bus 002 Device 007: ID 0b0e:0305 GN Netcom 
Bus 002 Device 003: ID 413c:2107 Dell Computer Corp. 
Bus 002 Device 002: ID 413c:301a Dell Computer Corp. 
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

Appreciate it if someone can throw some light on this issue.


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#StackBounty: #18.04 #hp #webcam Webcam not working on HP Truvision HD

Bounty: 50

My webcam throws a weird error when trying to start, some of the times it works fine and sometime it doesn’t. here is the error on cheese.

(cheese:5569): Gtk-WARNING **: 08:55:07.899: Theme parsing error: cheese.css:7:35: The style property GtkScrollbar:min-slider-length is deprecated and shouldn't be used anymore. It will be removed in a future version

** (cheese:5569): CRITICAL **: 08:55:11.980: cheese_preferences_dialog_on_source_change: assertion '_tmp2_ > ((guint) 0)' failed

(cheese:5569): cheese-CRITICAL **: 08:55:11.980: cheese_camera_device_get_name: assertion 'CHEESE_IS_CAMERA_DEVICE (device)' failed

(cheese:5569): GLib-CRITICAL **: 08:55:11.980: g_variant_new_string: assertion 'string != NULL' failed

(cheese:5569): GLib-CRITICAL **: 08:55:11.980: g_variant_ref_sink: assertion 'value != NULL' failed

(cheese:5569): GLib-GIO-CRITICAL **: 08:55:11.980: g_settings_schema_key_type_check: assertion 'value != NULL' failed

(cheese:5569): GLib-CRITICAL **: 08:55:11.981: g_variant_get_type_string: assertion 'value != NULL' failed

(cheese:5569): GLib-GIO-CRITICAL **: 08:55:11.981: g_settings_set_value: key 'camera' in 'org.gnome.Cheese' expects type 's', but a GVariant of type '(null)' was given

(cheese:5569): GLib-CRITICAL **: 08:55:11.981: g_variant_unref: assertion 'value != NULL' failed

** (cheese:5569): CRITICAL **: 08:55:11.981: cheese_preferences_dialog_setup_resolutions_for_device: assertion 'device != NULL' failed

** (cheese:5569): CRITICAL **: 08:55:13.697: cheese_preferences_dialog_on_source_change: assertion '_tmp2_ > ((guint) 0)' failed

(cheese:5569): cheese-CRITICAL **: 08:55:13.698: cheese_camera_device_get_name: assertion 'CHEESE_IS_CAMERA_DEVICE (device)' failed

(cheese:5569): GLib-CRITICAL **: 08:55:13.698: g_variant_new_string: assertion 'string != NULL' failed

(cheese:5569): GLib-CRITICAL **: 08:55:13.698: g_variant_ref_sink: assertion 'value != NULL' failed

(cheese:5569): GLib-GIO-CRITICAL **: 08:55:13.698: g_settings_schema_key_type_check: assertion 'value != NULL' failed

(cheese:5569): GLib-CRITICAL **: 08:55:13.698: g_variant_get_type_string: assertion 'value != NULL' failed

(cheese:5569): GLib-GIO-CRITICAL **: 08:55:13.698: g_settings_set_value: key 'camera' in 'org.gnome.Cheese' expects type 's', but a GVariant of type '(null)' was given

(cheese:5569): GLib-CRITICAL **: 08:55:13.698: g_variant_unref: assertion 'value != NULL' failed

** (cheese:5569): CRITICAL **: 08:55:13.698: cheese_preferences_dialog_setup_resolutions_for_device: assertion 'device != NULL' failed

(cheese:5569): cheese-WARNING **: 08:55:13.752: Could not read from resource.: gstv4l2bufferpool.c(1040): gst_v4l2_buffer_pool_poll (): /GstCameraBin:camerabin/GstWrapperCameraBinSrc:camera_source/GstBin:bin19/GstV4l2Src:v4l2src2:
poll error 1: Invalid argument (22)

Now I have seen some similar questions on the platform but no real solution.I am on Ubuntu 18.04.5 and this is info about my webcam.

08: USB 00.0: 0000 Unclassified device
  [Created at usb.122]
  Unique ID: +rmv.PHDpAsyWur2
  Parent ID: pBe4.2DFUsyrieMD
  SysFS ID: /devices/pci0000:00/0000:00:14.0/usb2/2-5/2-5:1.0
  SysFS BusID: 2-5:1.0
  Hardware Class: unknown
  Model: "Chicony Electronics HP Truevision HD"
  Hotplug: USB
  Vendor: usb 0x04f2 "Chicony Electronics Co., Ltd"
  Device: usb 0xb50a "HP Truevision HD"
  Revision: "19.17"
  Serial ID: "200901010001"
  Driver: "uvcvideo"
  Driver Modules: "uvcvideo"
  Device File: /dev/input/event11
  Device Files: /dev/input/event11, /dev/input/by-id/usb-Generic_HP_Truevision_HD_200901010001-event-if00, /dev/input/by-path/pci-0000:00:14.0-usb-0:5:1.0-event
  Device Number: char 13:75
  Speed: 480 Mbps
  Module Alias: "usb:v04F2pB50Ad1917dcEFdsc02dp01ic0Eisc01ip00in00"
  Driver Info #0:
    Driver Status: uvcvideo is active
    Driver Activation Cmd: "modprobe uvcvideo"
  Config Status: cfg=new, avail=yes, need=no, active=unknown
  Attached to: #16 (Hub)

Appreciate it if someone can throw some light on this issue.


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#StackBounty: #18.04 #multiple-monitors #hdmi #system-settings HDMI video output briefly goes dark each time System Settings is launche…

Bounty: 50

I am using Ubuntu 18.04.5 on a Dell XPS 13 9370 laptop, and I have an external HDMI screen. I have the issue that every time I launch System Settings the screen goes dark for few seconds. It also occur with some other applications – for example when launching SPSS.

To provide some more information, it seems to affect only the external screen. I normally work using only the external screen, however if I have both displays on (built-in and external via HDMI), only the external one goes dark when Settings is launched.

It is not a hugely disruptive as an issue, as after few seconds everything goes back to normal, however it is a bit annoying. I wonder if anyone has an idea about why this occurs, or how could I investigate this further? Thanks!


Edit: The screen is connected via an USB-c to HDMI adapter (don’t actually know the brand of the adaptor but I tried also with an original Dell one like this one and it gives the same issues). The monitor is an ASUS VP28UQGL, 28 Inch 4K.

Below are the output of the commands suggested in the comment. I realized that the issue occurs when xrandr is called, so it may be related to some randr configuration?
I pasted the output below.

Output of uname -a

Linux matteo-XPS13 5.4.0-65-generic #73~18.04.1-Ubuntu SMP Tue Jan 19 09:02:24 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux

Output of lspci -k | grep -EA3 'VGA|3D|Display'

00:02.0 VGA compatible controller: Intel Corporation UHD Graphics 620 (rev 07)
    Subsystem: Dell UHD Graphics 620
    Kernel driver in use: i915
    Kernel modules: i915

Output of xrandr

Screen 0: minimum 320 x 200, current 3840 x 2160, maximum 16384 x 16384
eDP-1 connected (normal left inverted right x axis y axis)
   3840x2160     60.00 +  59.98    59.97    48.00  
   3200x1800     59.96    59.94  
   2880x1620     59.96    59.97  
   2560x1600     59.99    59.97  
   2560x1440     59.99    59.99    59.96    59.95  
   2048x1536     60.00  
   1920x1440     60.00  
   1856x1392     60.01  
   1792x1344     60.01  
   2048x1152     59.99    59.98    59.90    59.91  
   1920x1200     59.88    59.95  
   1920x1080     60.01    59.97    59.96    59.93  
   1600x1200     60.00  
   1680x1050     59.95    59.88  
   1600x1024     60.17  
   1400x1050     59.98  
   1600x900      59.99    59.94    59.95    59.82  
   1280x1024     60.02  
   1440x900      59.89  
   1400x900      59.96    59.88  
   1280x960      60.00  
   1440x810      60.00    59.97  
   1368x768      59.88    59.85  
   1360x768      59.80    59.96  
   1280x800      59.99    59.97    59.81    59.91  
   1152x864      60.00  
   1280x720      60.00    59.99    59.86    59.74  
   1024x768      60.04    60.00  
   960x720       60.00  
   928x696       60.05  
   896x672       60.01  
   1024x576      59.95    59.96    59.90    59.82  
   960x600       59.93    60.00  
   960x540       59.96    59.99    59.63    59.82  
   800x600       60.00    60.32    56.25  
   840x525       60.01    59.88  
   864x486       59.92    59.57  
   800x512       60.17  
   700x525       59.98  
   800x450       59.95    59.82  
   640x512       60.02  
   720x450       59.89  
   700x450       59.96    59.88  
   640x480       60.00    59.94  
   720x405       59.51    58.99  
   684x384       59.88    59.85  
   680x384       59.80    59.96  
   640x400       59.88    59.98  
   576x432       60.06  
   640x360       59.86    59.83    59.84    59.32  
   512x384       60.00  
   512x288       60.00    59.92  
   480x270       59.63    59.82  
   400x300       60.32    56.34  
   432x243       59.92    59.57  
   320x240       60.05  
   360x202       59.51    59.13  
   320x180       59.84    59.32  
DP-1 disconnected (normal left inverted right x axis y axis)
DP-2 connected primary 3840x2160+0+0 (normal left inverted right x axis y axis) 621mm x 341mm
   3840x2160     30.00*+  30.00    25.00    24.00    29.97    23.98  
   2560x1600     59.97  
   2560x1440     59.95  
   1920x1080     60.00    60.00    50.00    59.94  
   1680x1050     59.88  
   1280x1024     75.02    60.02  
   1440x900      59.90  
   1280x960      60.00  
   1280x800      59.91  
   1152x864      75.00  
   1280x720      60.00    50.00    59.94  
   1440x576      50.00  
   1024x768      75.03    70.07    60.00  
   1440x480      60.00    59.94  
   832x624       74.55  
   800x600       72.19    75.00    60.32    56.25  
   720x480       60.00    59.94  
   640x480       75.00    72.81    66.67    60.00    59.94  
   720x400       70.08  
   640x350       70.07  


Get this bounty!!!

#StackBounty: #18.04 #multiple-monitors #hdmi #system-settings HDMI video output gores briefly dark each time System Settings is launch…

Bounty: 50

I am using Ubuntu 18.04.5 on a Dell XPS 13 9370 laptop, and I have an external HDMI screen. I have the issue that every time I launch System Settings the screen goes dark for few seconds. It also occur with some other applications – for example when launching SPSS.

To provide some more information, it seems to affect only the external screen. I normally work using only the external screen, however if I have both displays on (built-in and external via HDMI), only the external one goes dark when Settings is launched.

It is not a hugely disruptive as an issue, as after few seconds everything goes back to normal, however it is a bit annoying. I wonder if anyone has an idea about why this occurs, or how could I investigate this further? Thanks!


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#StackBounty: #18.04 #software-installation #minecraft Error in running Minecraft Bedrock Server on ubuntu 18.04

Bounty: 100

So I’m attempting to run a Minecraft Bedrock Dedicated Server on Ubuntu 18.04 and I’ve ran into an error in running the server file. Console says this before exiting.

./bedrock_server: line 1: version: command not found
./bedrock_server: line 2: oid: command not found
size: '366639608': No such file

I used chmod +x bedrock_server to allow me to execute it, and I run the file with LD_LIBRARY_PATH=. ./bedrock_server. Note that the bedrock_server file is the actual server file, and I am running it correctly, as you can see at this page under the Ubuntu download. I am pretty sure I have all the files needed, and at their latest version. If you need any other information, please ask for it.


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#StackBounty: #18.04 #microphone #noise #zoom-meeting #microsoft-teams Alternative way to suppress the noise in microsoft teams

Bounty: 50

When our mic is turned on in a Teams meeting or call, background noise around we—shuffling papers, slamming doors, barking dogs, and so on—can distract others. We need to suppress this noise. Right now, This sound suppressing is only supported for windows desktop and we dont have support for ubuntu

Is there any alternative way to suppress the background noise?


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#StackBounty: #18.04 #bluetooth #bluez Bluetooth service fails and freezes after some time in Ubuntu 18.04

Bounty: 100

Recently bluetooth is giving a lot of problems in 18.04.5 LTS (I have the latest update), specially when I awake the laptop (I have no TLP installed). I updated bluez and nothing changed. Bluetooth can’t connect and does not seem to power on, even after restarting the service.

I find these errors on red when I check the status of bluetooth after restart:

Version mismatch for sixaxis
Loading LTKs timed out for hci0
Failed to set mode: Failed (0x03)

I also get Failed to set power on: org.bluez.Error.Failed when I try to power on on bluetoothctl

Log

$ sudo service bluetooth restart
$ sudo service bluetooth status
● bluetooth.service - Bluetooth service
   Loaded: loaded (/lib/systemd/system/bluetooth.service; enabled; vendor preset: enabled)
   Active: active (running) since Sun 2021-01-10 14:12:22 CET; 18s ago
     Docs: man:bluetoothd(8)
 Main PID: 13873 (bluetoothd)
   Status: "Running"
    Tasks: 1 (limit: 4915)
   CGroup: /system.slice/bluetooth.service
           └─13873 /usr/lib/bluetooth/bluetoothd

Jan 10 14:12:22 toshiba systemd[1]: Starting Bluetooth service...
Jan 10 14:12:22 toshiba bluetoothd[13873]: Bluetooth daemon 5.50
Jan 10 14:12:22 toshiba systemd[1]: Started Bluetooth service.
Jan 10 14:12:22 toshiba bluetoothd[13873]: Starting SDP server
Jan 10 14:12:22 toshiba bluetoothd[13873]: Version mismatch for sixaxis
Jan 10 14:12:22 toshiba bluetoothd[13873]: Bluetooth management interface 1.14 initialized
Jan 10 14:12:22 toshiba bluetoothd[13873]: Endpoint registered: sender=:1.91 path=/MediaEndpoint/A2DPSource
Jan 10 14:12:22 toshiba bluetoothd[13873]: Endpoint registered: sender=:1.91 path=/MediaEndpoint/A2DPSink
Jan 10 14:12:24 toshiba bluetoothd[13873]: Loading LTKs timed out for hci0
Jan 10 14:12:32 toshiba bluetoothd[13873]: Failed to set mode: Failed (0x03)


$ sudo bluetoothctl
Agent registered
[bluetooth]# power on
Failed to set power on: org.bluez.Error.Failed
*-usb:0
  description: Bluetooth wireless interface
  vendor: Intel Corp.
  physical id: 2
  bus info: usb@1:1.2
  version: 0.01
  capabilities: bluetooth usb-2.00
  configuration: driver=btusb maxpower=100mA speed=12Mbit/s

Note

To make it work again, I need to reboot.

This is really annoying because I’m using it for a bluetooth keyboard, and every time it fails to connect I have to switch to the laptop internal keyboard.


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#StackBounty: #18.04 #permissions #sudo #gnome-terminal #plugins Getting error while running sudo commands, from /etc/sudo.conf file

Bounty: 50

I want to run commands in terminal with sudo and get in this error for running sudo commands:

sudo su

sudo: error in /etc/sudo.conf, line 16 while loading plugin "sudoers_audit"
sudo: unable to find symbol "sudoers_audit" in /usr/lib/sudo/sudoers.so
sudo: fatal error, unable to load plugins

when I check /etc/sudo.conf file, it has these plugins :

Plugin sudoers_policy sudoers.so
Plugin sudoers_io sudoers.so
Plugin sudoers_audit sudoers.so

and by checking ldd dependencies for /usr/lib/sudo/sudoers.so all of dependencies are exist.

linux-vdso.so.1 (0x0000007f84e17000)
libgtk3-nocsd.so.0 => /usr/lib/aarch64-linux-gnu/libgtk3-nocsd.so.0 (0x0000007f84d44000)
libaudit.so.1 => /lib/aarch64-linux-gnu/libaudit.so.1 (0x0000007f84d0d000)
libpam.so.0 => /lib/aarch64-linux-gnu/libpam.so.0 (0x0000007f84cf0000)
libsudo_util.so.0 => /usr/lib/sudo/libsudo_util.so.0 (0x0000007f84cce000)
libc.so.6 => /lib/aarch64-linux-gnu/libc.so.6 (0x0000007f84b75000)
/lib/ld-linux-aarch64.so.1 (0x0000007f84deb000)
libdl.so.2 => /lib/aarch64-linux-gnu/libdl.so.2 (0x0000007f84b60000)
libpthread.so.0 => /lib/aarch64-linux-gnu/libpthread.so.0 (0x0000007f84b34000)
libcap-ng.so.0 => /lib/aarch64-linux-gnu/libcap-ng.so.0 (0x0000007f84b1f000)

also, all libaudit.so.1 dependencies are exist:

linux-vdso.so.1 (0x0000007f85188000)
libgtk3-nocsd.so.0 => /usr/lib/aarch64-linux-gnu/libgtk3-nocsd.so.0 (0x0000007f850e0000)
libcap-ng.so.0 => /lib/aarch64-linux-gnu/libcap-ng.so.0 (0x0000007f850cb000)
libc.so.6 => /lib/aarch64-linux-gnu/libc.so.6 (0x0000007f84f72000)
/lib/ld-linux-aarch64.so.1 (0x0000007f8515c000)
libdl.so.2 => /lib/aarch64-linux-gnu/libdl.so.2 (0x0000007f84f5d000)
libpthread.so.0 => /lib/aarch64-linux-gnu/libpthread.so.0 (0x0000007f84f31000)

How could I resolve this problem?


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#StackBounty: #18.04 #20.04 #launcher #mime-type #xdg-open All files open in browser

Bounty: 100

Description

All files, no matter their type, and no matter what application I associate with the type, open with my default browser (Firefox), which then asks me to choose an application. This is very annoying.

It doesn’t matter if I double-click, right-click and explicitly choose with which application to open the file, or even xdg-open file.name, the file always opens with Firefox.

Context

I believe it happened after I upgraded to Ubuntu 18.04 a few weeks ago. I have now upgraded to 20.04 for this reason, but it did not help.

More information

Consider CSV files for instance… I have this association visible via xdg-mime:

$ xdg-mime query default text/csv
libreoffice-calc.desktop

I have this association visible in "Files":

enter image description here

I also have this (just in case):

$ cat /usr/share/applications/mimeinfo.cache | grep csv
application/csv=libreoffice-calc.desktop;
text/csv=libreoffice-calc.desktop;
text/x-csv=libreoffice-calc.desktop;

Finally, I searched for all mimeapps.list and defaults.list files on my computer, and either they specify nothing, or point to libreoffice-calc.desktop.

Similar questions

I have seen people report similar problems, but nothing discussed there has helped:

Does anyone have any clue?


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#StackBounty: #18.04 #notification #notify-osd Notifications never go away

Bounty: 50

Ever since last week notifications will show, but can’t be hidden.

Notifications stay there forever obstructing part of the screen and can’t be closed.

This happens for most notifications and the only thing that hides them is pressing Alt+F2 then restart.

I really don’t know what’s caused this. This is what I’ve tried:

  • sudo apt-get install --reinstall notify-osd
  • Logging in and out.
  • Multiple restarts.

I’m running: Ubuntu 18.04.5 LTS

Any help is much appreciated.


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