0

In short, after some update, my Lubuntu started logging me out several times a day all of sudden. I see no pattern to it, a black screen appears and after a few seconds I'm on a login desktop.

I see that this problem is quite common in Ubuntu, unfortunately with a low fix-rate:

Ubuntu 18.04 logs out unexpectedly or crashes

Automatically Being Logged Out Lubuntu

Ubuntu randomly, suddenly logs out my user session back to login

Random and sudden logging out from my user session

Why does Ubuntu keep logging me out?

https://superuser.com/questions/27780/random-unwanted-log-off-in-ubuntu


Related bugs:

https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1455916

https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/760695

https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/980519


EDIT

I'm now sure, that the logging off is caused by DisplayLink drivers, as it only happens when I'm using the docking stations with another monitor.


My attempts:

So far I'm not sure, what to do now - I'm skeptical about changing my mouse cursor, monitor brightness, and similar advice, which is very specific and probably not the cause here. Also, my PC is overheating.

Logs:

/var/log/syslog (~ 1 min before log out)

Jun 22 14:10:01 martin-pc whoopsie[2512]: [14:10:01] Reported OOPS ID 4bd97b92-b481-11ea-af96-fa163e983629
Jun 22 14:10:02 martin-pc kernel: [42667.109916] audit: type=1400 audit(1592827802.980:179): apparmor="DENIED" operation="mknod" profile="/usr/bin/evince-thumbnailer" name="/home/martin/.cache/thumbnails/normal/19c1fdaca161d2599153746a76141c1a.png" pid=26411 comm="evince-thumbnai" requested_mask="c" denied_mask="c" fsuid=1000 ouid=1000
Jun 22 14:10:03 martin-pc acvpnagent[1078]: The client's potential public address list is now set to 158.196.114.188, 2001:718:1001:1C1:CC6:B16E:648B:4ABC
Jun 22 14:10:04 martin-pc kernel: [42668.392742] audit: type=1400 audit(1592827804.264:180): apparmor="DENIED" operation="mknod" profile="/usr/bin/evince-thumbnailer" name="/home/martin/.cache/thumbnails/normal/19b23220b16e2861f6ad643d6c30c1b8.png" pid=26464 comm="evince-thumbnai" requested_mask="c" denied_mask="c" fsuid=1000 ouid=1000
Jun 22 14:10:04 martin-pc kernel: [42669.064521] audit: type=1400 audit(1592827804.936:181): apparmor="DENIED" operation="mknod" profile="/usr/bin/evince-thumbnailer" name="/home/martin/.cache/thumbnails/normal/7b9de9383e187fb76c9c5bb3b982e7d3.png" pid=26539 comm="evince-thumbnai" requested_mask="c" denied_mask="c" fsuid=1000 ouid=1000
Jun 22 14:10:05 martin-pc kernel: [42669.303603] audit: type=1400 audit(1592827805.172:182): apparmor="DENIED" operation="mknod" profile="/usr/bin/evince-thumbnailer" name="/home/martin/.cache/thumbnails/normal/658e01d9f61a53a9833079531679f20e.png" pid=26587 comm="evince-thumbnai" requested_mask="c" denied_mask="c" fsuid=1000 ouid=1000
Jun 22 14:10:05 martin-pc kernel: [42669.464472] audit: type=1400 audit(1592827805.336:183): apparmor="DENIED" operation="mknod" profile="/usr/bin/evince-thumbnailer" name="/home/martin/.cache/thumbnails/normal/19a51d7e2d15b6a398f9cac40a3c35a2.png" pid=26608 comm="evince-thumbnai" requested_mask="c" denied_mask="c" fsuid=1000 ouid=1000
Jun 22 14:10:05 martin-pc kernel: [42669.607032] audit: type=1400 audit(1592827805.476:184): apparmor="DENIED" operation="mknod" profile="/usr/bin/evince-thumbnailer" name="/home/martin/.cache/thumbnails/normal/307bd64fdc9763e20b0e1d24cba9accc.png" pid=26623 comm="evince-thumbnai" requested_mask="c" denied_mask="c" fsuid=1000 ouid=1000
Jun 22 14:10:05 martin-pc kernel: [42669.706970] audit: type=1400 audit(1592827805.576:185): apparmor="DENIED" operation="mknod" profile="/usr/bin/evince-thumbnailer" name="/home/martin/.cache/thumbnails/normal/4213125f25e1aaef6e423c45e92fbb8f.png" pid=26635 comm="evince-thumbnai" requested_mask="c" denied_mask="c" fsuid=1000 ouid=1000
Jun 22 14:10:05 martin-pc kernel: [42669.844723] audit: type=1400 audit(1592827805.716:186): apparmor="DENIED" operation="mknod" profile="/usr/bin/evince-thumbnailer" name="/home/martin/.cache/thumbnails/normal/2d66fd138d5f10f0b1cbb094c1d293d7.png" pid=26647 comm="evince-thumbnai" requested_mask="c" denied_mask="c" fsuid=1000 ouid=1000
Jun 22 14:10:06 martin-pc kernel: [42671.004324] audit: type=1400 audit(1592827806.876:187): apparmor="DENIED" operation="mknod" profile="/usr/bin/evince-thumbnailer" name="/home/martin/.cache/thumbnails/normal/7a910c5ddd46849d1740242f87147f72.png" pid=26658 comm="evince-thumbnai" requested_mask="c" denied_mask="c" fsuid=1000 ouid=1000
Jun 22 14:10:07 martin-pc kernel: [42671.277916] audit: type=1400 audit(1592827807.148:188): apparmor="DENIED" operation="mknod" profile="/usr/bin/evince-thumbnailer" name="/home/martin/.cache/thumbnails/normal/743fd574787147a718f7b1db86a8438b.png" pid=26786 comm="evince-thumbnai" requested_mask="c" denied_mask="c" fsuid=1000 ouid=1000
Jun 22 14:10:07 martin-pc systemd[1]: Stopping User Manager for UID 119...
Jun 22 14:10:07 martin-pc systemd[23726]: Stopped target Main User Target.
Jun 22 14:10:07 martin-pc systemd[23726]: Stopping D-Bus User Message Bus...
Jun 22 14:10:07 martin-pc systemd[23726]: dbus.service: Succeeded.
Jun 22 14:10:07 martin-pc systemd[23726]: Stopped D-Bus User Message Bus.
Jun 22 14:10:07 martin-pc systemd[23726]: Stopped target Basic System.
Jun 22 14:10:07 martin-pc systemd[23726]: Stopped target Paths.
Jun 22 14:10:07 martin-pc systemd[23726]: ubuntu-report.path: Succeeded.
Jun 22 14:10:07 martin-pc systemd-resolved[975]: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with reduced feature level UDP.
Jun 22 14:10:07 martin-pc systemd[23726]: Stopped Pending report trigger for Ubuntu Report.
Jun 22 14:10:07 martin-pc systemd[23726]: Stopped target Sockets.
Jun 22 14:10:07 martin-pc systemd[23726]: Stopped target Timers.
Jun 22 14:10:07 martin-pc systemd[23726]: dbus.socket: Succeeded.
Jun 22 14:10:07 martin-pc systemd[23726]: Closed D-Bus User Message Bus Socket.
Jun 22 14:10:07 martin-pc systemd[23726]: dirmngr.socket: Succeeded.
Jun 22 14:10:07 martin-pc systemd[23726]: Closed GnuPG network certificate management daemon.
Jun 22 14:10:07 martin-pc systemd[23726]: gpg-agent-browser.socket: Succeeded.
Jun 22 14:10:07 martin-pc systemd[23726]: Closed GnuPG cryptographic agent and passphrase cache (access for web browsers).
Jun 22 14:10:07 martin-pc systemd[23726]: gpg-agent-extra.socket: Succeeded.
Jun 22 14:10:07 martin-pc systemd[23726]: Closed GnuPG cryptographic agent and passphrase cache (restricted).
Jun 22 14:10:07 martin-pc systemd[23726]: gpg-agent-ssh.socket: Succeeded.
Jun 22 14:10:07 martin-pc systemd[23726]: Closed GnuPG cryptographic agent (ssh-agent emulation).
Jun 22 14:10:07 martin-pc systemd[23726]: gpg-agent.socket: Succeeded.
Jun 22 14:10:07 martin-pc systemd[23726]: Closed GnuPG cryptographic agent and passphrase cache.
Jun 22 14:10:07 martin-pc systemd[23726]: pk-debconf-helper.socket: Succeeded.
Jun 22 14:10:07 martin-pc systemd[23726]: Closed debconf communication socket.
Jun 22 14:10:07 martin-pc systemd[23726]: pulseaudio.socket: Succeeded.
Jun 22 14:10:07 martin-pc systemd[23726]: Closed Sound System.
Jun 22 14:10:07 martin-pc systemd[23726]: snapd.session-agent.socket: Succeeded.
Jun 22 14:10:07 martin-pc systemd[23726]: Closed REST API socket for snapd user session agent.
Jun 22 14:10:07 martin-pc systemd[23726]: Reached target Shutdown.
Jun 22 14:10:07 martin-pc systemd[23726]: systemd-exit.service: Succeeded.
Jun 22 14:10:07 martin-pc systemd[23726]: Finished Exit the Session.
Jun 22 14:10:07 martin-pc systemd[23726]: Reached target Exit the Session.
Jun 22 14:10:07 martin-pc systemd-resolved[975]: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with reduced feature level UDP.
Jun 22 14:10:07 martin-pc systemd[1]: user@119.service: Succeeded.
Jun 22 14:10:07 martin-pc systemd[1]: Stopped User Manager for UID 119.
Jun 22 14:10:07 martin-pc systemd[1]: Stopping User Runtime Directory /run/user/119...
Jun 22 14:10:07 martin-pc systemd[2045]: run-user-119.mount: Succeeded.
Jun 22 14:10:07 martin-pc systemd[1]: run-user-119.mount: Succeeded.
Jun 22 14:10:07 martin-pc systemd[1]: user-runtime-dir@119.service: Succeeded.
Jun 22 14:10:07 martin-pc systemd[1]: Stopped User Runtime Directory /run/user/119.
Jun 22 14:10:07 martin-pc systemd[1]: Removed slice User Slice of UID 119.
Jun 22 14:10:08 martin-pc kernel: [42672.190096] kauditd_printk_skb: 2 callbacks suppressed
Jun 22 14:10:08 martin-pc kernel: [42672.190098] audit: type=1400 audit(1592827808.060:191): apparmor="DENIED" operation="mknod" profile="/usr/bin/evince-thumbnailer" name="/home/martin/.cache/thumbnails/normal/7ae5ba26cc2d12e49018b67ec8f5ebb0.png" pid=26874 comm="evince-thumbnai" requested_mask="c" denied_mask="c" fsuid=1000 ouid=1000
Jun 22 14:10:09 martin-pc systemd[1]: NetworkManager-dispatcher.service: Succeeded.
Jun 22 14:10:10 martin-pc kernel: [42674.241009] audit: type=1400 audit(1592827810.112:192): apparmor="DENIED" operation="mknod" profile="/usr/bin/evince-thumbnailer" name="/home/martin/.cache/thumbnails/normal/62b19bb1a34357eac27be423d69c49cb.png" pid=26906 comm="evince-thumbnai" requested_mask="c" denied_mask="c" fsuid=1000 ouid=1000
Jun 22 14:10:10 martin-pc dbus-daemon[2097]: [session uid=1000 pid=2097] Activating service name='org.freedesktop.secrets' requested by ':1.311' (uid=1000 pid=25308 comm="./jetbrains-toolbox --minimize " label="unconfined")
Jun 22 14:10:10 martin-pc dbus-daemon[2097]: [session uid=1000 pid=2097] Successfully activated service 'org.freedesktop.secrets'
Jun 22 14:10:10 martin-pc kernel: [42674.368825] audit: type=1400 audit(1592827810.240:193): apparmor="DENIED" operation="mknod" profile="/usr/bin/evince-thumbnailer" name="/home/martin/.cache/thumbnails/normal/24f2a81a3cdc937358e3df83119a19db.png" pid=27086 comm="evince-thumbnai" requested_mask="c" denied_mask="c" fsuid=1000 ouid=1000
Jun 22 14:10:10 martin-pc kernel: [42674.717627] audit: type=1400 audit(1592827810.588:194): apparmor="DENIED" operation="mknod" profile="/usr/bin/evince-thumbnailer" name="/home/martin/.cache/thumbnails/normal/297a00a0997cc1da1c2a5abe3675f21f.png" pid=27104 comm="evince-thumbnai" requested_mask="c" denied_mask="c" fsuid=1000 ouid=1000
Jun 22 14:10:11 martin-pc kernel: [42675.282034] audit: type=1400 audit(1592827811.152:195): apparmor="DENIED" operation="mknod" profile="/usr/bin/evince-thumbnailer" name="/home/martin/.cache/thumbnails/normal/51d16eb9926f63f70dada2cbd2ff2d37.png" pid=27134 comm="evince-thumbnai" requested_mask="c" denied_mask="c" fsuid=1000 ouid=1000
Jun 22 14:10:11 martin-pc kernel: [42675.476818] audit: type=1400 audit(1592827811.348:196): apparmor="DENIED" operation="mknod" profile="/usr/bin/evince-thumbnailer" name="/home/martin/.cache/thumbnails/normal/bc99caf053903b85e0eea32b1eb7cd23.png" pid=27185 comm="evince-thumbnai" requested_mask="c" denied_mask="c" fsuid=1000 ouid=1000
Jun 22 14:10:11 martin-pc kernel: [42675.591566] audit: type=1400 audit(1592827811.460:197): apparmor="DENIED" operation="mknod" profile="/usr/bin/evince-thumbnailer" name="/home/martin/.cache/thumbnails/normal/5632ebcd5431fd0a4b2be441f59b2954.png" pid=27210 comm="evince-thumbnai" requested_mask="c" denied_mask="c" fsuid=1000 ouid=1000
Jun 22 14:10:11 martin-pc kernel: [42675.757501] audit: type=1400 audit(1592827811.628:198): apparmor="DENIED" operation="mknod" profile="/usr/bin/evince-thumbnailer" name="/home/martin/.cache/thumbnails/normal/4a5286479adb81cc34f733a8af6f71fd.png" pid=27222 comm="evince-thumbnai" requested_mask="c" denied_mask="c" fsuid=1000 ouid=1000
Jun 22 14:10:12 martin-pc kernel: [42676.239938] audit: type=1400 audit(1592827812.112:199): apparmor="DENIED" operation="mknod" profile="/usr/bin/evince-thumbnailer" name="/home/martin/.cache/thumbnails/normal/f915953db39a74f6c90370e87df6f7c4.png" pid=27239 comm="evince-thumbnai" requested_mask="c" denied_mask="c" fsuid=1000 ouid=1000
Jun 22 14:10:12 martin-pc acvpnagent[1078]: Function: OnTransportInitiateComplete File: ../../vpn/Common/IP/TlsTransport.cpp Line: 418 Invoked Function: ISocketTransportCB::OnTransportInitiateComplete Return Code: -31588316 (0xFE1E0024) Description: SOCKETTRANSPORT_ERROR_CONNECT_TIMEOUT 
Jun 22 14:10:12 martin-pc acvpnagent[1078]: Function: OnOpenRequestComplete File: ../../vpn/Common/IP/HttpProbeAsync.cpp Line: 302 Invoked Function: CHttpSessionAsync::OnOpenRequestComplete Return Code: -31588316 (0xFE1E0024) Description: SOCKETTRANSPORT_ERROR_CONNECT_TIMEOUT 
Jun 22 14:10:12 martin-pc acvpnagent[1078]: Function: OnTimerExpired File: ../../vpn/Common/IPC/SocketTransport.cpp Line: 1815 Invoked Function: CSocketTransport::postConnectProcessing Return Code: -31588316 (0xFE1E0024) Description: SOCKETTRANSPORT_ERROR_CONNECT_TIMEOUT 
Jun 22 14:10:12 martin-pc acvpnagent[1078]: Function: logProbeFailure File: ../../vpn/Agent/NetEnvironment.cpp Line: 1538 Invoked Function: CHttpProbeAsync::SendProbe Return Code: -27000818 (0xFE64000E) Description: HTTP_PROBE_ASYNC_ERROR_CANNOT_CONNECT HTTPS (host: 195.113.113.10)
Jun 22 14:10:12 martin-pc acvpnagent[1078]: Function: TestAccessToSG File: ../../vpn/Agent/NetEnvironment.cpp Line: 1380 Invoked Function: CNetEnvironment::analyzeHttpResponse Return Code: -28901363 (0xFE47000D) Description: NETENVIRONMENT_ERROR_PROBE_INCOMPLETE:Network Probe could not contact target 
Jun 22 14:10:12 martin-pc kernel: [42676.642444] audit: type=1400 audit(1592827812.512:200): apparmor="DENIED" operation="mknod" profile="/usr/bin/evince-thumbnailer" name="/home/martin/.cache/thumbnails/normal/a6460631cc66ccf85d716de296e8b7ce.png" pid=27276 comm="evince-thumbnai" requested_mask="c" denied_mask="c" fsuid=1000 ouid=1000
Jun 22 14:10:13 martin-pc kernel: [42677.372571] kauditd_printk_skb: 3 callbacks suppressed
Jun 22 14:10:13 martin-pc kernel: [42677.372573] audit: type=1400 audit(1592827813.244:204): apparmor="DENIED" operation="mknod" profile="/usr/bin/evince-thumbnailer" name="/home/martin/.cache/thumbnails/normal/f29236c9f96799f6804477d3363c26a3.png" pid=27354 comm="evince-thumbnai" requested_mask="c" denied_mask="c" fsuid=1000 ouid=1000
Jun 22 14:10:13 martin-pc kernel: [42677.913692] audit: type=1400 audit(1592827813.784:205): apparmor="DENIED" operation="mknod" profile="/usr/bin/evince-thumbnailer" name="/home/martin/.cache/thumbnails/normal/110481e53616de3d76734db9c955a11a.png" pid=27372 comm="evince-thumbnai" requested_mask="c" denied_mask="c" fsuid=1000 ouid=1000
Jun 22 14:10:14 martin-pc kernel: [42678.350642] audit: type=1400 audit(1592827814.220:206): apparmor="DENIED" operation="mknod" profile="/usr/bin/evince-thumbnailer" name="/home/martin/.cache/thumbnails/normal/5a2b6182d416111d96d72d671150dc1e.png" pid=27407 comm="evince-thumbnai" requested_mask="c" denied_mask="c" fsuid=1000 ouid=1000
Jun 22 14:10:14 martin-pc kernel: [42678.466851] audit: type=1400 audit(1592827814.336:207): apparmor="DENIED" operation="mknod" profile="/usr/bin/evince-thumbnailer" name="/home/martin/.cache/thumbnails/normal/38ec69f093e5e370616217dd140a4a00.png" pid=27435 comm="evince-thumbnai" requested_mask="c" denied_mask="c" fsuid=1000 ouid=1000
Jun 22 14:10:14 martin-pc kernel: [42678.587163] audit: type=1400 audit(1592827814.456:208): apparmor="DENIED" operation="mknod" profile="/usr/bin/evince-thumbnailer" name="/home/martin/.cache/thumbnails/normal/89e69aa30efeb544e8bb9774478f1cfd.png" pid=27444 comm="evince-thumbnai" requested_mask="c" denied_mask="c" fsuid=1000 ouid=1000
Jun 22 14:10:14 martin-pc kernel: [42678.807208] audit: type=1400 audit(1592827814.676:209): apparmor="DENIED" operation="mknod" profile="/usr/bin/evince-thumbnailer" name="/home/martin/.cache/thumbnails/normal/28297642783dc30cf63cbd22abe21b1b.png" pid=27454 comm="evince-thumbnai" requested_mask="c" denied_mask="c" fsuid=1000 ouid=1000
Jun 22 14:10:15 martin-pc kernel: [42679.181090] audit: type=1400 audit(1592827815.052:210): apparmor="DENIED" operation="mknod" profile="/usr/bin/evince-thumbnailer" name="/home/martin/.cache/thumbnails/normal/056ccf21605f35632b272ddff5c6f8d7.png" pid=27474 comm="evince-thumbnai" requested_mask="c" denied_mask="c" fsuid=1000 ouid=1000
Jun 22 14:10:15 martin-pc kernel: [42679.279929] audit: type=1400 audit(1592827815.152:211): apparmor="DENIED" operation="mknod" profile="/usr/bin/evince-thumbnailer" name="/home/martin/.cache/thumbnails/normal/14ca11a8484653bc697feee0787fbb8d.png" pid=27503 comm="evince-thumbnai" requested_mask="c" denied_mask="c" fsuid=1000 ouid=1000
Jun 22 14:10:15 martin-pc systemd-resolved[975]: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with reduced feature level UDP.
Jun 22 14:10:15 martin-pc kernel: [42679.733330] audit: type=1400 audit(1592827815.604:212): apparmor="DENIED" operation="mknod" profile="/usr/bin/evince-thumbnailer" name="/home/martin/.cache/thumbnails/normal/419e350f64f7e779e6a5e612a814ba00.png" pid=27514 comm="evince-thumbnai" requested_mask="c" denied_mask="c" fsuid=1000 ouid=1000
Jun 22 14:10:15 martin-pc kernel: [42680.055927] audit: type=1400 audit(1592827815.928:213): apparmor="DENIED" operation="mknod" profile="/usr/bin/evince-thumbnailer" name="/home/martin/.cache/thumbnails/normal/561cbc7ef5dd519dc611392012f3a370.png" pid=27557 comm="evince-thumbnai" requested_mask="c" denied_mask="c" fsuid=1000 ouid=1000
Jun 22 14:10:15 martin-pc systemd-resolved[975]: Server returned error NXDOMAIN, mitigating potential DNS violation DVE-2018-0001, retrying transaction with reduced feature level UDP.
Jun 22 14:10:20 martin-pc acvpnagent[1078]: Function: OnOpenRequestComplete File: ../../vpn/Common/IP/HttpProbeAsync.cpp Line: 302 Invoked Function: CHttpSessionAsync::OnOpenRequestComplete Return Code: -31588316 (0xFE1E0024) Description: SOCKETTRANSPORT_ERROR_CONNECT_TIMEOUT 
Jun 22 14:10:20 martin-pc acvpnagent[1078]: Function: OnTimerExpired File: ../../vpn/Common/IPC/SocketTransport.cpp Line: 1815 Invoked Function: CSocketTransport::postConnectProcessing Return Code: -31588316 (0xFE1E0024) Description: SOCKETTRANSPORT_ERROR_CONNECT_TIMEOUT 
Jun 22 14:10:20 martin-pc acvpnagent[1078]: Function: logProbeFailure File: ../../vpn/Agent/NetEnvironment.cpp Line: 1538 Invoked Function: CHttpProbeAsync::SendProbe Return Code: -27000818 (0xFE64000E) Description: HTTP_PROBE_ASYNC_ERROR_CANNOT_CONNECT HTTP (host: 195.113.113.10)
Jun 22 14:10:20 martin-pc acvpnagent[1078]: Function: TestAccessToSG File: ../../vpn/Agent/NetEnvironment.cpp Line: 1474 Invoked Function: CNetEnvironment::analyzeHttpResponse Return Code: -28901363 (0xFE47000D) Description: NETENVIRONMENT_ERROR_PROBE_INCOMPLETE:Network Probe could not contact target 
Jun 22 14:10:20 martin-pc acvpnagent[1078]: Function: testNetwork File: ../../vpn/Agent/NetEnvironment.cpp Line: 865 Invoked Function: CNetEnvironment::IsSGAccessible Return Code: -28901363 (0xFE47000D) Description: NETENVIRONMENT_ERROR_PROBE_INCOMPLETE:Network Probe could not contact target 
Jun 22 14:10:20 martin-pc acvpnagent[1078]: Function: TestNetEnv File: ../../vpn/Agent/NetEnvironment.cpp Line: 298 Invoked Function: CNetEnvironment::testNetwork Return Code: -28901363 (0xFE47000D) Description: NETENVIRONMENT_ERROR_PROBE_INCOMPLETE:Network Probe could not contact target 
Jun 22 14:10:20 martin-pc acvpnagent[1078]: Function: TestNetEnv File: ../../vpn/Agent/NetEnvironment.cpp Line: 336 Incomplete probe count is 1
Jun 22 14:10:20 martin-pc acvpnagent[1078]: Function: TestNetEnv File: ../../vpn/Agent/NetEnvironment.cpp Line: 438 Network accessible. Retesting connectivity to the secure gateway in 10 seconds.
Jun 22 14:10:20 martin-pc acvpnagent[1078]: Current network state: Network accessible
Jun 22 14:10:27 martin-pc whoopsie-upload-all[24778]: /var/crash/_usr_lib_xorg_Xorg.0.crash already marked for upload, skipping
Jun 22 14:10:27 martin-pc whoopsie-upload-all[24778]: Collecting info for /var/crash/_usr_bin_pcmanfm-qt.1000.crash...
Jun 22 14:10:27 martin-pc whoopsie-upload-all[24778]: Marking /var/crash/_usr_bin_pcmanfm-qt.1000.crash for whoopsie upload
Jun 22 14:10:27 martin-pc whoopsie-upload-all[24778]: All reports processed
Jun 22 14:10:27 martin-pc systemd[1]: apport-autoreport.service: Succeeded.
Jun 22 14:10:27 martin-pc systemd[1]: Finished Process error reports when automatic reporting is enabled.
Jun 22 14:10:27 martin-pc whoopsie[2512]: [14:10:27] Parsing /var/crash/_usr_bin_pcmanfm-qt.1000.crash.
Jun 22 14:10:27 martin-pc whoopsie[2512]: [14:10:27] Uploading /var/crash/_usr_bin_pcmanfm-qt.1000.crash.
Jun 22 14:10:29 martin-pc wpa_supplicant[1067]: wlp1s0: PMKSA-CACHE-ADDED c4:14:3c:12:70:e1 0
Jun 22 14:10:29 martin-pc wpa_supplicant[1067]: wlp1s0: PMKSA-CACHE-ADDED c4:14:3c:38:79:3e 0
Jun 22 14:10:29 martin-pc wpa_supplicant[1067]: wlp1s0: PMKSA-CACHE-ADDED c4:14:3c:7a:38:1e 0
Jun 22 14:10:29 martin-pc wpa_supplicant[1067]: wlp1s0: PMKSA-CACHE-ADDED c4:14:3c:38:79:31 0
Jun 22 14:10:29 martin-pc wpa_supplicant[1067]: wlp1s0: PMKSA-CACHE-ADDED c4:14:3c:7a:38:11 0

_usr_lib_xorg_Xorg.0.crash Backtrace

 [ 42642.734] (EE) Backtrace:
 [ 42642.735] (EE) 0: /usr/lib/xorg/Xorg (OsLookupColor+0x13c) [0x56021786bdec]
 [ 42642.737] (EE) 1: /lib/x86_64-linux-gnu/libpthread.so.0 (funlockfile+0x60) [0x7f6df963c41f]
 [ 42642.739] (EE) 2: /lib/x86_64-linux-gnu/libc.so.6 (gsignal+0xcb) [0x7f6df947918b]
 [ 42642.742] (EE) 3: /lib/x86_64-linux-gnu/libc.so.6 (abort+0x12b) [0x7f6df9458859]
 [ 42642.743] (EE) unw_get_proc_name failed: no unwind info found [-10]
 [ 42642.743] (EE) 4: /usr/lib/x86_64-linux-gnu/dri/iris_dri.so (?+0x0) [0x7f6df76783a7]
 [ 42642.745] (EE) 5: /usr/lib/x86_64-linux-gnu/dri/iris_dri.so (nouveau_drm_screen_create+0x2036b7) [0x7f6df826ab97]
 [ 42642.746] (EE) 6: /usr/lib/x86_64-linux-gnu/dri/iris_dri.so (__driDriverGetExtensions_zink+0x24f35) [0x7f6df76c8685]
 [ 42642.748] (EE) 7: /usr/lib/x86_64-linux-gnu/dri/iris_dri.so (__driDriverGetExtensions_zink+0x24fa4) [0x7f6df76c8784]
 [ 42642.751] (EE) unw_get_proc_name failed: no unwind info found [-10]
 [ 42642.751] (EE) 8: /usr/lib/xorg/modules/drivers/modesetting_drv.so (?+0x0) [0x7f6df9f90c50]
 [ 42642.753] (EE) unw_get_proc_name failed: no unwind info found [-10]
 [ 42642.753] (EE) 9: /usr/lib/xorg/modules/drivers/modesetting_drv.so (?+0x0) [0x7f6df9f93860]
 [ 42642.753] (EE) 10: /usr/lib/xorg/Xorg (BlockHandler+0xa5) [0x56021770f9a5]
 [ 42642.754] (EE) 11: /usr/lib/xorg/Xorg (WaitForSomething+0x122) [0x560217865462]
 [ 42642.754] (EE) 12: /usr/lib/xorg/Xorg (SendErrorToClient+0x117) [0x56021770ad07]
 [ 42642.754] (EE) 13: /usr/lib/xorg/Xorg (InitFonts+0x3b4) [0x56021770efd4]
 [ 42642.756] (EE) 14: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xf3) [0x7f6df945a0b3]
 [ 42642.756] (EE) 15: /usr/lib/xorg/Xorg (_start+0x2e) [0x5602176f8a3e]

There is also a crash log for PcManFM, but I suppose, that its crash is caused by XOrg.

  • Are you using Lubuntu's LXQt desktop? Did you fresh install a Lubuntu LXQt release? or upgrade from a LXDE or other release? The bugs and links you provided seem to relate to GNOME/Unity and one to LXDE which won't apply to a LXQt desktop if you clean installed a Lubuntu LXQt release (as is suggested & supported by the Lubuntu team). Why do you think they relate? and tagged them? (esp. bug reports, as I see no connection and why you seem to think they relate) – guiverc Jun 22 at 9:42
  • @guiverc unrelated but please take a look at askubuntu.com/q/1252479/248158 – DK Bose Jun 22 at 10:09
  • @guiverc Yes, I'm using LXQt desktop and I upgraded from Lubuntu 19.10. Also, I mentioned the other questions and bug reports due to the similarity of the problem, not necessarily the cause. – Eenoku Jun 22 at 11:21
  • ack @DKBose, I saw the other post ~two nights ago but have struggled to find time to look into keybindings & respond... have given a little.. upgrades from prior LXQt releases (eg. 19.10) shouldn't impact anything.. Are you sure the crash log is for pcmanfm ?? as that's not been used by Lubuntu since 18.04 (Lubuntu uses pcmanfm-qt now as in your posts) pcmanfm is GTK2 based using a very different stack.. Overheating is a clue maybe, but logout isn't a hang (system recovers; not Xorg) but is your machine accessed remotely? as I see network (anyconnect?) errors – guiverc Jun 23 at 13:02
  • @guiverc I've edited my question - the logging off is probably connected to using DisplayLink. – Eenoku Jul 1 at 9:08

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