#StackBounty: #18.04 #dell #freeze Ubuntu 18.04 on new Dell 3584 keeps freezing

Bounty: 100

yesterday I bought Dell 3584 which came with Ubuntu 18.04 preinstalled. When I started the system it froze at some point, after that I installed the updates, switched to KDE but it still keeps freezing. I’ve searched many topics but not sure what to do.

Under software and updates I have one unknown.unknown driver, could this be the problem?

Screenshot of my additional drivers tab

If this is Ubuntu only issue, will switching to some other distro help? I’m thinking Arch or openSUSE.

Here is output of lspci -v:

00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v6/7th Gen Core Processor Host Bridge/DRAM Registers (rev 03)
        Subsystem: Dell Xeon E3-1200 v6/7th Gen Core Processor Host Bridge/DRAM Registers
        Flags: bus master, fast devsel, latency 0
        Capabilities: [e0] Vendor Specific Information: Len=10 <?>
        Kernel driver in use: skl_uncore

00:02.0 VGA compatible controller: Intel Corporation Device 5921 (rev 06) (prog-if 00 [VGA controller])
        Subsystem: Dell Device 08d1
        Flags: bus master, fast devsel, latency 0, IRQ 132
        Memory at d0000000 (64-bit, non-prefetchable) [size=16M]
        Memory at c0000000 (64-bit, prefetchable) [size=256M]
        I/O ports at f000 [size=64]
        [virtual] Expansion ROM at 000c0000 [disabled] [size=128K]
        Capabilities: [40] Vendor Specific Information: Len=0c <?>
        Capabilities: [70] Express Root Complex Integrated Endpoint, MSI 00
        Capabilities: [ac] MSI: Enable+ Count=1/1 Maskable- 64bit-
        Capabilities: [d0] Power Management version 2
        Capabilities: [100] Process Address Space ID (PASID)
        Capabilities: [200] Address Translation Service (ATS)
        Capabilities: [300] Page Request Interface (PRI)
        Kernel driver in use: i915
        Kernel modules: i915

00:04.0 Signal processing controller: Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor Thermal Subsystem (rev 03)
        Subsystem: Dell Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor Thermal Subsystem
        Flags: fast devsel, IRQ 16
        Memory at d1420000 (64-bit, non-prefetchable) [size=32K]
        Capabilities: [90] MSI: Enable- Count=1/1 Maskable- 64bit-
        Capabilities: [d0] Power Management version 3
        Capabilities: [e0] Vendor Specific Information: Len=0c <?>
        Kernel modules: processor_thermal_device

00:14.0 USB controller: Intel Corporation Sunrise Point-LP USB 3.0 xHCI Controller (rev 21) (prog-if 30 [XHCI])
        Subsystem: Dell Sunrise Point-LP USB 3.0 xHCI Controller
        Flags: bus master, medium devsel, latency 0, IRQ 126
        Memory at d1410000 (64-bit, non-prefetchable) [size=64K]
        Capabilities: [70] Power Management version 2
        Capabilities: [80] MSI: Enable+ Count=1/8 Maskable- 64bit+
        Kernel driver in use: xhci_hcd

00:14.2 Signal processing controller: Intel Corporation Sunrise Point-LP Thermal subsystem (rev 21)
        Subsystem: Dell Sunrise Point-LP Thermal subsystem
        Flags: fast devsel, IRQ 18
        Memory at d1437000 (64-bit, non-prefetchable) [size=4K]
        Capabilities: [50] Power Management version 3
        Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit-
        Kernel driver in use: intel_pch_thermal
        Kernel modules: intel_pch_thermal

00:15.0 Signal processing controller: Intel Corporation Sunrise Point-LP Serial IO I2C Controller #0 (rev 21)
        Subsystem: Dell Sunrise Point-LP Serial IO I2C Controller
        Flags: bus master, fast devsel, latency 0, IRQ 16
        Memory at d1436000 (64-bit, non-prefetchable) [size=4K]
        Capabilities: [80] Power Management version 3
        Capabilities: [90] Vendor Specific Information: Len=14 <?>
        Kernel driver in use: intel-lpss
        Kernel modules: intel_lpss_pci

00:16.0 Communication controller: Intel Corporation Sunrise Point-LP CSME HECI #1 (rev 21)
        Subsystem: Dell Sunrise Point-LP CSME HECI
        Flags: bus master, fast devsel, latency 0, IRQ 133
        Memory at d1435000 (64-bit, non-prefetchable) [size=4K]
        Capabilities: [50] Power Management version 3
        Capabilities: [8c] MSI: Enable+ Count=1/1 Maskable- 64bit+
        Kernel driver in use: mei_me
        Kernel modules: mei_me

00:17.0 SATA controller: Intel Corporation Sunrise Point-LP SATA Controller [AHCI mode] (rev 21) (prog-if 01 [AHCI 1.0])
        Subsystem: Dell Sunrise Point-LP SATA Controller [AHCI mode]
        Flags: bus master, 66MHz, medium devsel, latency 0, IRQ 130
        Memory at d1430000 (32-bit, non-prefetchable) [size=8K]
        Memory at d1434000 (32-bit, non-prefetchable) [size=256]
        I/O ports at f090 [size=8]
        I/O ports at f080 [size=4]
        I/O ports at f060 [size=32]
        Memory at d1433000 (32-bit, non-prefetchable) [size=2K]
        Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit-
        Capabilities: [70] Power Management version 3
        Capabilities: [a8] SATA HBA v1.0
        Kernel driver in use: ahci
        Kernel modules: ahci

00:1c.0 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #5 (rev f1) (prog-if 00 [Normal decode])
        Flags: bus master, fast devsel, latency 0, IRQ 122
        Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
        I/O behind bridge: 0000e000-0000efff
        Memory behind bridge: d1300000-d13fffff
        Capabilities: [40] Express Root Port (Slot+), MSI 00
        Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit-
        Capabilities: [90] Subsystem: Dell Sunrise Point-LP PCI Express Root Port
        Capabilities: [a0] Power Management version 3
        Capabilities: [100] Advanced Error Reporting
        Capabilities: [140] Access Control Services
        Capabilities: [200] L1 PM Substates
        Capabilities: [220] #19
        Kernel driver in use: pcieport

00:1c.5 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #6 (rev f1) (prog-if 00 [Normal decode])
        Flags: bus master, fast devsel, latency 0, IRQ 123
        Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
        Memory behind bridge: d1000000-d11fffff
        Capabilities: [40] Express Root Port (Slot+), MSI 00
        Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit-
        Capabilities: [90] Subsystem: Dell Sunrise Point-LP PCI Express Root Port
        Capabilities: [a0] Power Management version 3
        Capabilities: [100] #00
        Capabilities: [140] Access Control Services
        Capabilities: [200] L1 PM Substates
        Capabilities: [220] #19
        Kernel driver in use: pcieport

00:1d.0 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express Root Port #9 (rev f1) (prog-if 00 [Normal decode])
        Flags: bus master, fast devsel, latency 0, IRQ 124
        Bus: primary=00, secondary=03, subordinate=03, sec-latency=0
        Memory behind bridge: d1200000-d12fffff
        Capabilities: [40] Express Root Port (Slot+), MSI 00
        Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit-
        Capabilities: [90] Subsystem: Dell Sunrise Point-LP PCI Express Root Port
        Capabilities: [a0] Power Management version 3
        Capabilities: [100] Advanced Error Reporting
        Capabilities: [140] Access Control Services
        Capabilities: [200] L1 PM Substates
        Capabilities: [220] #19
        Kernel driver in use: pcieport

00:1f.0 ISA bridge: Intel Corporation Intel(R) 100 Series Chipset Family LPC Controller/eSPI Controller - 9D4E (rev 21)
        Subsystem: Dell Device 08d1
        Flags: bus master, fast devsel, latency 0

00:1f.2 Memory controller: Intel Corporation Sunrise Point-LP PMC (rev 21)
        Subsystem: Dell Sunrise Point-LP PMC
        Flags: fast devsel
        Memory at d142c000 (32-bit, non-prefetchable) [disabled] [size=16K]

00:1f.3 Audio device: Intel Corporation Sunrise Point-LP HD Audio (rev 21) (prog-if 80)
        Subsystem: Dell Sunrise Point-LP HD Audio
        Flags: bus master, fast devsel, latency 32, IRQ 135
        Memory at d1428000 (64-bit, non-prefetchable) [size=16K]
        Memory at d1400000 (64-bit, non-prefetchable) [size=64K]
        Capabilities: [50] Power Management version 3
        Capabilities: [60] MSI: Enable+ Count=1/1 Maskable- 64bit+
        Kernel driver in use: snd_hda_intel
        Kernel modules: snd_hda_intel, snd_soc_skl

00:1f.4 SMBus: Intel Corporation Sunrise Point-LP SMBus (rev 21)
        Subsystem: Dell Sunrise Point-LP SMBus
        Flags: medium devsel, IRQ 255
        Memory at d1432000 (64-bit, non-prefetchable) [size=256]
        I/O ports at f040 [size=32]
        Kernel modules: i2c_i801

01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL810xE PCI Express Fast Ethernet controller (rev 07)
        Subsystem: Dell RTL810xE PCI Express Fast Ethernet controller
        Flags: bus master, fast devsel, latency 0, IRQ 16
        I/O ports at e000 [size=256]
        Memory at d1304000 (64-bit, non-prefetchable) [size=4K]
        Memory at d1300000 (64-bit, prefetchable) [size=16K]
        Capabilities: [40] Power Management version 3
        Capabilities: [50] MSI: Enable- Count=1/1 Maskable- 64bit+
        Capabilities: [70] Express Endpoint, MSI 01
        Capabilities: [b0] MSI-X: Enable+ Count=4 Masked-
        Capabilities: [d0] Vital Product Data
        Capabilities: [100] Advanced Error Reporting
        Capabilities: [140] Virtual Channel
        Capabilities: [160] Device Serial Number 01-00-00-00-36-4c-e0-00
        Capabilities: [170] Latency Tolerance Reporting
        Kernel driver in use: r8169
        Kernel modules: r8169

02:00.0 Network controller: Qualcomm Atheros QCA9377 802.11ac Wireless Network Adapter (rev 31)
        Subsystem: Dell QCA9377 802.11ac Wireless Network Adapter
        Flags: bus master, fast devsel, latency 0, IRQ 134
        Memory at d1000000 (64-bit, non-prefetchable) [size=2M]
        Capabilities: [40] Power Management version 3
        Capabilities: [50] MSI: Enable+ Count=1/8 Maskable+ 64bit-
        Capabilities: [70] Express Endpoint, MSI 00
        Capabilities: [100] Advanced Error Reporting
        Capabilities: [148] Virtual Channel
        Capabilities: [168] Device Serial Number 00-00-00-00-00-00-00-00
        Capabilities: [178] Latency Tolerance Reporting
        Capabilities: [180] L1 PM Substates
        Kernel driver in use: ath10k_pci
        Kernel modules: ath10k_pci

03:00.0 Non-Volatile memory controller: Device 1987:5008 (rev 01) (prog-if 02 [NVM Express])
        Subsystem: Device 1987:5008
        Flags: bus master, fast devsel, latency 0, IRQ 16, NUMA node 0
        Memory at d1200000 (64-bit, non-prefetchable) [size=16K]
        Capabilities: [80] Express Endpoint, MSI 00
        Capabilities: [d0] MSI-X: Enable+ Count=9 Masked-
        Capabilities: [e0] MSI: Enable- Count=1/8 Maskable- 64bit+
        Capabilities: [f8] Power Management version 3
        Capabilities: [100] Vendor Specific Information: ID=1556 Rev=1 Len=008 <?>
        Capabilities: [108] Latency Tolerance Reporting
        Capabilities: [110] L1 PM Substates
        Capabilities: [128] Alternative Routing-ID Interpretation (ARI)
        Capabilities: [200] Advanced Error Reporting
        Capabilities: [300] #19
        Kernel driver in use: nvme



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#StackBounty: #drivers #18.04 #sound #bluetooth #headphones Ubuntu 18.04.3 Failed to connect: org.bluez.Error.Failed

Bounty: 50

I’m unable to connect my Bluetooth headset Sony MDR-XB950N1. Here are some info that might help:

  1. This is a Ubuntu 18.04.3 from scratch (first time I did some changes, so this time it’s intact)

  2. Output for: rfkill list
    0: hci0: Bluetooth
        Soft blocked: no
        Hard blocked: no
    1: phy0: Wireless LAN
        Soft blocked: no
        Hard blocked: no
    
  3. Output for: dmesg | grep Blue
    [    3.779924] Bluetooth: Core ver 2.22
    [    3.779933] Bluetooth: HCI device and connection manager initialized
    [    3.779936] Bluetooth: HCI socket layer initialized
    [    3.779937] Bluetooth: L2CAP socket layer initialized
    [    3.779939] Bluetooth: SCO socket layer initialized
    [    3.927905] Bluetooth: hci0: Firmware revision 0.1 build 184 week 15 2019
    [    4.085989] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
    [    4.085990] Bluetooth: BNEP filters: protocol multicast
    [    4.085992] Bluetooth: BNEP socket layer initialized
    [   51.943002] Bluetooth: RFCOMM TTY layer initialized
    [   51.943005] Bluetooth: RFCOMM socket layer initialized
    [   51.943008] Bluetooth: RFCOMM ver 1.11
    [ 3337.300487] audit: type=1107 audit(1578332620.663:53): pid=714 uid=103 auid=4294967295 ses=4294967295 msg='apparmor="DENIED" operation="dbus_method_call"  bus="system" path="/" interface="org.freedesktop.DBus.ObjectManager" member="GetManagedObjects" mask="send" name="org.bluez" pid=5801 label="snap.teams-for-linux.teams-for-linux" peer_pid=847 peer_label="unconfined"
    
  4. Output for: lspci -knn | grep Net -A2; lsusb
    00:14.3 Network controller [0280]: Intel Corporation Wireless-AC 9560 [Jefferson Peak] [8086:a370] (rev 10)
        Subsystem: Intel Corporation Device [8086:0034]
        Kernel driver in use: iwlwifi
    Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
    Bus 001 Device 004: ID 048d:ce00 Integrated Technology Express, Inc. 
    Bus 001 Device 003: ID 046d:c52b Logitech, Inc. Unifying Receiver
    Bus 001 Device 002: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card Reader Controller
    Bus 001 Device 006: ID 8087:0aaa Intel Corp. 
    Bus 001 Device 005: ID 04f2:b65a Chicony Electronics Co., Ltd 
    Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    
  5. Trying over bluetoothctl:
    [NEW] Controller 38:00:25:A1:F0:85 bonavel [default]
    Agent registered
    [bluetooth]# list
    Controller 38:00:25:A1:F0:85 bonavel [default]
    [NEW] Device 04:5D:4B:96:D5:65 MDR-XB950N1
    [bluetooth]# devices
    Device 04:5D:4B:96:D5:65 MDR-XB950N1
    [bluetooth]# scan on
    Discovery started
    [bluetooth]# devices
    Device 04:5D:4B:96:D5:65 MDR-XB950N1
    [bluetooth]# pair 04:5D:4B:96:D5:65
    Attempting to pair with 04:5D:4B:96:D5:65
    [CHG] Device 04:5D:4B:96:D5:65 Connected: yes
    [CHG] Device 04:5D:4B:96:D5:65 Connected: no
    [CHG] Device 04:5D:4B:96:D5:65 Paired: yes
    Pairing successful
    [CHG] Controller 38:00:25:A1:F0:85 Discoverable: no
    [bluetooth]# trust 04:5D:4B:96:D5:65
    [CHG] Device 04:5D:4B:96:D5:65 Trusted: yes
    Changing 04:5D:4B:96:D5:65 trust succeeded
    [bluetooth]# connect 04:5D:4B:96:D5:65
    Attempting to connect to 04:5D:4B:96:D5:65
    Failed to connect: org.bluez.Error.Failed
    [bluetooth]# 
    [CHG] Controller 38:00:25:A1:F0:85 DiscoverableTimeout: 0x00000000
    [CHG] Controller 38:00:25:A1:F0:85 DiscoverableTimeout: 0x00000000
    [CHG] Controller 38:00:25:A1:F0:85 Discoverable: yes
    [bluetooth]# devices
    Device 04:5D:4B:96:D5:65 MDR-XB950N1
    [bluetooth]# connect 04:5D:4B:96:D5:65
    Attempting to connect to 04:5D:4B:96:D5:65
    Failed to connect: org.bluez.Error.Failed
    
  6. My Bluetooth Logitech M585 worked fine:
    Device E1:B5:43:77:D0:97 M585/M590
    
  7. Output of tail -f /var/log/syslog when trying to connect again over bluetoothctl:
    Jan  4 16:46:43 bonavel bluetoothd[887]: 04:5D:4B:96:D5:65: error updating services: Host is down (112)
    
  8. Output of pactl list | grep -i bluetooth
    Name: module-bluetooth-policy
        module.description = "Policy module to make using bluetooth devices out-of-the-box easier"
    Name: module-bluetooth-discover
        module.description = "Detect available Bluetooth daemon and load the corresponding discovery module"
        module.description = "Detect available BlueZ 5 Bluetooth audio devices and load BlueZ 5 Bluetooth audio drivers"
    
  9. Applied this solution and it is still not working.

  10. Applied this solution and now I was able to pair and connect, but it was unable to reproduce sound though it quickly disconnected.

  11. Output of bluetoothctl after item 10.

    [bluetooth]# info 04:5D:4B:96:D5:65
    Device 04:5D:4B:96:D5:65 (public)
        Name: MDR-XB950N1
        Alias: MDR-XB950N1
        Class: 0x00240404
        Icon: audio-card
        Paired: yes
        Trusted: no
        Blocked: no
        Connected: no
        LegacyPairing: no
        UUID: Handsfree                 (0000111e-0000-1000-8000-00805f9b34fb)
        UUID: Headset                   (00001108-0000-1000-8000-00805f9b34fb)
        UUID: Audio Sink                (0000110b-0000-1000-8000-00805f9b34fb)
        UUID: Advanced Audio Distribu.. (0000110d-0000-1000-8000-00805f9b34fb)
        UUID: A/V Remote Control        (0000110e-0000-1000-8000-00805f9b34fb)
        UUID: A/V Remote Control Target (0000110c-0000-1000-8000-00805f9b34fb)
        UUID: Headset HS                (00001131-0000-1000-8000-00805f9b34fb)
        UUID: A/V Remote Control Cont.. (0000110f-0000-1000-8000-00805f9b34fb)
        UUID: Vendor specific           (00000000-deca-fade-deca-deafdecacaff)
        Modalias: usb:v054Cp0BEAd0102
    [bluetooth]# connect 04:5D:4B:96:D5:65
    Attempting to connect to 04:5D:4B:96:D5:65
    [CHG] Device 04:5D:4B:96:D5:65 Connected: yes
    [CHG] Device 04:5D:4B:96:D5:65 UUIDs: 00000000-deca-fade-deca-deafdecacaff
    [CHG] Device 04:5D:4B:96:D5:65 UUIDs: 00001108-0000-1000-8000-00805f9b34fb
    [CHG] Device 04:5D:4B:96:D5:65 UUIDs: 0000110b-0000-1000-8000-00805f9b34fb
    [CHG] Device 04:5D:4B:96:D5:65 UUIDs: 0000110c-0000-1000-8000-00805f9b34fb
    [CHG] Device 04:5D:4B:96:D5:65 UUIDs: 0000110e-0000-1000-8000-00805f9b34fb
    [CHG] Device 04:5D:4B:96:D5:65 UUIDs: 0000111e-0000-1000-8000-00805f9b34fb
    [CHG] Device 04:5D:4B:96:D5:65 UUIDs: 00001200-0000-1000-8000-00805f9b34fb
    [CHG] Device 04:5D:4B:96:D5:65 UUIDs: 7b265b0e-2232-4d45-bef4-bb8ae62f813d
    [CHG] Device 04:5D:4B:96:D5:65 UUIDs: 96cc203e-5068-46ad-b32d-e316f5e069ba
    [CHG] Device 04:5D:4B:96:D5:65 UUIDs: b9b213ce-eeab-49e4-8fd9-aa478ed1b26b
    [CHG] Device 04:5D:4B:96:D5:65 ServicesResolved: yes
    Connection successful
    [CHG] Controller 38:00:25:A1:F0:85 Discovering: yes
    [CHG] Controller 38:00:25:A1:F0:85 DiscoverableTimeout: 0x00000000
    [CHG] Controller 38:00:25:A1:F0:85 DiscoverableTimeout: 0x00000000
    [CHG] Controller 38:00:25:A1:F0:85 Discoverable: yes
    [CHG] Device 04:5D:4B:96:D5:65 ServicesResolved: no
    [CHG] Device 04:5D:4B:96:D5:65 Connected: no
    [CHG] Device 04:5D:4B:96:D5:65 Connected: yes
    [CHG] Controller 38:00:25:A1:F0:85 Discoverable: no
    [MDR-XB950N1]# connect 04:5D:4B:96:D5:65
    Attempting to connect to 04:5D:4B:96:D5:65
    Failed to connect: org.bluez.Error.InProgress
  1. I factory restored the headset following this instructions. Then I was able to pair and connect to it. But when I put some audio through it, it feels like there was a lot of interference with only some random very cut noises that I couldn’t even relate to what was being played. Then I was able to disconnected and connect again but now no sound is being played at all. Then after 1 min or so, the headset lost the connection.

I’ve been searching for more than 2 hours and applying all possible solutions I found, but none of them fixed my problem, so I reinstalled Ubuntu 18.04.3 from scratch.


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#StackBounty: #18.04 Ubuntu 18.04 LAN driver and some software suddenly went missing without any reason

Bounty: 50

I’m using Ubuntu 18.04.3, this one I installed last November and never have any problem so far.

Just around an hour ago after I restart my PC to clear some GPU memory, I found Google Chrome missing, I install that from .deb file and then then found out that the LAN menu went missing as well and I have to use wifi shered from phone now.

I didn’t even run a single sudo in that session, just run some Python and Dota in steam. The only thing that not normal is that Tensorflow raise core dumped more often but I fixed it according to this, so I don’t think this is related.

Later I found out that Redshift and VSCode are missing as well, from both terminal and launcher, don’t know if there’s anything else though. Checked it later and found out that VLC is gone too and got unmet dependencies so I can’t re-install it.

The software’s’ setting are all safe and sound.

What’s went wrong here exactly and also, how to bring the LAN back? Also some other softwares that suddenly have unmet dependencies.

My LAN works fine when I switch to Windows 10 though.

Software&Update somehow looks like this. I can only thick the Continue… but cannot Apply Changes, cannot thick anything else either.
enter image description here

I got this when run sudo lshw -c network

  *-network DISABLED        
       description: Ethernet interface
       product: Ethernet Connection (2) I219-V
       vendor: Intel Corporation
       physical id: 1f.6
       bus info: pci@0000:00:1f.6
       logical name: enp0s31f6
       version: 00
       serial: 70:85:c2:43:aa:f3
       capacity: 1Gbit/s
       width: 32 bits
       clock: 33MHz
       capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=3.2.6-k firmware=0.2-4 latency=0 link=no multicast=yes port=twisted pair
       resources: irq:123 memory:df300000-df31ffff

The word DISABLED is gone once I run sudo ip link set dev enp0s31f6 up but nothing else happens. The network menu still not show up and it goes back to DISABLED after I restart.

This doesn’t work neither does this nor this.


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#StackBounty: #18.04 #docker #syslog #udisks udisks2 (udisksd) errors in syslog: how to investigate?

Bounty: 100

my system logs of my Ubuntu 18.04 Intel NUC are getting spammed by these error messages:

udisksd[1369]: udisks_mount_get_mount_path: assertion 'mount->type == UDISKS_MOUNT_TYPE_FILESYSTEM' failed

I figured out that the spamming is due to Docker which is installed and got some containers running. But with Docker and all containers stopped the error also occurs in the syslog but not that often.
Googling this error message didn’t get my any help.
It is not hardware related since I changed the NUC and I have a similar configured NUC running which doesn’t have this errors.

Does someone have any clue how to investigate this issue?


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#StackBounty: #16.04 #18.04 Icons disappear and everything freezes

Bounty: 50

I have Ubuntu 16.04 (running on HP Spectre x360). Quite recently the following problem has occurred:

Every so often (maybe every 30 minutes at this point), the WiFi does, the bar that has all my icons disappears, and also the bar that has volume and WiFi and clock etc. also disappears.

Things also freeze and I have to hard restart.

I don’t even know where to begin trying to fix this issue. Any help would be greatly appreciated.


I upgraded to 18.04 and it was working fine for a while. But then this same thing happened.


Occassionally it will also fail to some kind of terminal screen with scrolling error messages:

Error messages


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#StackBounty: #xubuntu #18.04 #xfce psensor not showing sensor data in label in Xubuntu 18.04

Bounty: 150

I have three machines running Xubuntu: two on 16.04 and one on 18.04.

psensor is installed on all machines, and the sensor preferences for CPU core temp (or whatever) on all machines has the setting Display sensor info in the label (experimental) enabled.

The sensor info is properly displayed in the label for both 16.04 machines, but not for 18.04. All required dependencies have been installed for psensor (lm-sensors hddtemp etc).

Xubuntu 16.04 has been installed on the currently 18.04 machine previously, and psensor properly worked.

According to the Xubuntu 18.04 release notes, there have been some changes or updates to panel plugins, including the “Status Notifier Plugin” and a new “Notification Plugin”. Since psensor displays in the “Notification area” plugin (systray-4), I’m guessing that some of these changes has affected the way psensor and likely other applications are displayed?

I’ve included a screencap of psensor in label, that shows how psensor label displays in the panel, as well as the psensor settings. As you can see, it shows the temperature icon in the panel, but no actual sensor information. Furthermore, when you click on the temp icon, it no longer displays the summary/preview of temperatures and info, but instead opens the “Psensor – Temperature Monitor” graph.

This is the only issue I’ve had with Xubuntu 18.04 so far that bothers me (some other weird issues like file text persisting after you eject a drive), and really the only reason I have not updated my other machines to 18.04 already.

I haven’t seen anyone else talk about this issue with psensor on 18.04, so either this is an isolated problem, or more likely, just a Xubuntu/XFCE issue rather than a Ubuntu 18.04 issue.

Any ideas?


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#StackBounty: #18.04 #services #log #rsyslog rsyslog giving error while creating directories and files, can anyone help with it?

Bounty: 50

Please excuse me as I’m not very sure how to format and fit all of this:

Here I’m using Ubuntu 18.04.3 LTS (Bionic Beaver) for details click here.

rsyslog version used rsyslogd 8.2001.0.aeabf0e9703b for details clieck here.

/etc/rsyslog.conf file click here.

I copied the default “/etc/rsyslog.d/50-default.conf” file overwriting earlier file which I modified from the backup, (as suggested by few users here in comments) to ensure default configuration is not tamppered with, click here who want to check the default file is intact.

Then created a new file “/etc/rsyslog.d/central-log-server.conf” where I updated my configuration, which is as it was earlier, click here to view my configuration file.

The error log after restarting the rsyslog service which is captured using below 2 command, please click here for the error log.

journalctl -f -u rsyslog
tail -50 /var/log/rsyslogd.log

What we want to achive is given below:

  1. Specific format within all log files as given below, which can be imported as csv file later for more anylysis:

    Month – day – Year – hour – minute – Seconds – Hostname – Application/Service – severity – messege (add space if $msg doesn’t start with one) – n (Add blank line after each messege)

  2. All log files should be stored in their specifc hostname folders:

    /var/log/remote-servers/%HOSTNAME%/%PROGRAMNAME%.%Month%-%Date%-%Year%.log

I can only hope that this is a better formatting than before! I’m really not good at this but this is the best I could do.

Thanks in advance. can someone help me?


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#StackBounty: #drivers #18.04 #wireless #sound #dell Wireless/audio not working on Dell Vostro 15 5590 with Ubuntu 18.04.3 LTS

Bounty: 50

I am posting this as I’ve gone through several posts here and couldn’t understand exactly the issues I’m having and the solution.
I recently bought a Dell Vostro 15 5590 (see here for all specs). Relevant hardware information:

  • 10th Generation Intel Core i7-10510U
  • Wireless adapter Intel 9462 NGW
  • Audio controller Realtek ALC3204

It came with Windows 10, but then I decided to install Ubuntu 18.04.3 LTS alongside it. When I first booted into Ubuntu, I noticed the wireless wasn’t working. The card wasn’t even showing up in the UI, but with lspci I could see it. After a thorough search I found this which worked. I basically installed the linux-oem-osp1 package and after a reboot I was able to connect to a Wi-Fi network.

However, I then noticed that the audio wasn’t working, neither input nor output. In the UI it was only showing the dummy output but again through lspci I could find my sound card. Found some questions here but nothing worked. Does anyone have any clue about this?

UPDATE: About the sound issues, I tried all the alternatives provided in this link. For the step where I should run the alsamixer utility, it failed with the message cannot open mixer: No such file or directory. I believe that is because it cannot find any sound card?


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#StackBounty: #18.04 #browser #brave brave browser will not open

Bounty: 50

The brave browser worked great for me for many months. I have discovered several extensions which I enabled carefully including “The Great Suspender” so keeping tabs open doesn’t consume unnecessary resources.

Last week after an update when I click the icon in the lxde menu bar I see no windows opening at all.

It’s not opening a blank white window like I saw reported elsewhere, just nothing.

I believe I installed using the most current method, not snap. 1.0.1 recently came out.

$ dpkg -l | grep -i brave
ii  brave-browser    1.0.1  amd64   The web browser from Brave
ii  brave-keyring    1.7      all   Brave Browser keyring and repository files

I see it’s trying to open but doesn’t:

$ ps -ef | grep -i brave
grantbow  4732  4160  0 12:42 ?        00:00:00 /bin/bash /usr/bin/brave-browser-stable
grantbow  4739  4732 28 12:42 ?        00:00:09 /opt/brave.com/brave/brave
grantbow  4743  4739  0 12:42 ?        00:00:00 /opt/brave.com/brave/brave --type=zygote
grantbow  4747  4743  0 12:42 ?        00:00:00 /opt/brave.com/brave/brave --type=zygote
grantbow  4766  4739  4 12:42 ?        00:00:01 /opt/brave.com/brave/brave --type=gpu-process --field-trial-handle=1515
8583491962856952,6341817588596150380,131072 --enable-features=NewExtensionUpdaterService,PasswordImport,SimplifyHttpsIn
dicator,WebUIDarkMode --disable-features=AudioServiceOutOfProcess,AutofillServerCommunication,LookalikeUrlNavigationSug
gestionsUI,NotificationTriggers,SmsReceiver,SyncUSSBookmarks,UnifiedConsent --gpu-preferences=KAAAAAAAAAAgAAAgAAAAAAAAY
AABAAAAEAAAAAAAAAAAAAAAAAAAAAgAAAAAAAAA --service-request-channel-token=5765932197625944813

I looked in ~/.config/BraveSoftware/Brave-Browser/Default but didn’t find anything I recognized as relevant.

I saw discussions about enabling a kernel namespace configuration like this github thread but those reports do not seem current and I am not sure a change of that type would have happened recently though it’s possible.

My first concern was to backup my settings. I am not sure how to start without extensions. I saw a brave support template on the brave site but not details on how to check my settings or a process by which to narrow down the causes. Without at least a workaround to get an open window I am limited in exploring the settings very well.

Suggestions welcome!


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