Desktop freezes a while than logs out

[Dezső-Masztera László]

In the last few months I often experience the following symptom. The Ubuntu desktop freezes for 2-3 minutes, then automatically logs out without any user interaction.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-4.15.0-72-generic 4.15.0-72.81
ProcVersionSignature: Ubuntu 4.15.0-72.81-generic 4.15.18
Uname: Linux 4.15.0-72-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.9
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: laca 2067 F.... pulseaudio
 /dev/snd/controlC2: laca 2067 F.... pulseaudio
 /dev/snd/controlC1: laca 2067 F.... pulseaudio
CurrentDesktop: ubuntu:GNOME
Date: Sat Dec 7 16:01:15 2019
HibernationDevice: RESUME=UUID=9b9553b2-3060-4b74-9890-16e50d306f43
InstallationDate: Installed on 2018-08-25 (469 days ago)
InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
MachineType: Dell Inc. Inspiron 5548
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-72-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=1
RelatedPackageVersions:
 linux-restricted-modules-4.15.0-72-generic N/A
 linux-backports-modules-4.15.0-72-generic N/A
 linux-firmware 1.173.12
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 12/04/2014
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A02
dmi.board.name: 079JDM
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: A02
dmi.modalias: dmi:bvnDellInc.:bvrA02:bd12/04/2014:svnDellInc.:pnInspiron5548:pvrA02:rvnDellInc.:rn079JDM:rvrA00:cvnDellInc.:ct8:cvrA02:
dmi.product.name: Inspiron 5548
dmi.product.version: A02
dmi.sys.vendor: Dell Inc.

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This change was made by a bot.

[Kai-Heng Feng (kaihengfeng)]

Sounds like gnome-shell if frozen then get killed.

[Daniel van Vugt (vanvugt)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. It sounds like some part of the system has crashed. To help us find the cause of the crash please follow these steps:

1. Look in /var/crash for crash files and if found run:
    ubuntu-bug YOURFILE.crash
Then tell us the ID of the newly-created bug.

2. If step 1 failed then look at https://errors.ubuntu.com/user/ID where ID is the content of file /var/lib/whoopsie/whoopsie-id on the machine. Do you find any links to recent problems on that page? If so then please send the links to us.

3. If step 2 also failed then apply the workaround from bug 994921, reboot, reproduce the crash, and retry step 1.

Please take care to avoid attaching .crash files to bugs as we are unable to process them as file attachments. It would also be a security risk for yourself.

[Launchpad Janitor (janitor)]

[Expired for gnome-shell (Ubuntu) because there has been no activity for 60 days.]

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]

[Dezső-Masztera László (my-ucuntu-ak)]

Still not resolved

[Daniel van Vugt (vanvugt)]

Please remember to follow the steps in comment #4.

[Launchpad Janitor (janitor)]

[Expired for gnome-shell (Ubuntu) because there has been no activity for 60 days.]

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]