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You received this bug notification because you are a member of Desktop
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https://bugs.launchpad.net/bugs/1878166

Title:
  gnome-shell freezes randomly on nouveau and wayland

Status in gnome-shell package in Ubuntu:
  Incomplete

Bug description:
  The freeze causes the mouse cursor to stop moving and keyboard to stop
  responding and nothing moves on screen, not even the clock. Curiously
  the music continues to play (and e.g. sound from youtube video
  continues to be played even though the video itself freezes and no
  longer animates on-screen).

  It appears that the freeze happens quite randomly; I am not able to
  figure out what it's caused by. Sometimes it's caused by launching the
  Snap Chromium, or perhaps by a notification shown, but I do not know
  for sure. I also tried to hunt system logs and/or systemd gnome-shell
  logs, but I failed to discover some kind of crash dump.

  Curiously the Ctrl+Alt+F2 key combo stops working. That leads me to
  believe that it's some kind of kernel+nouveau crash, but I can't seem
  to discover any kernel panic in the system logs.

  After the gnome-shell freezes, the numlock light still responds to
  numlock key presses. However, mashing Ctrl+Alt+Del has no effect, so
  I'm only able to reboot via Alt+Sysrq+s u b.

  Thank you :)

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: gnome-shell 3.36.1-5ubuntu2
  ProcVersionSignature: Ubuntu 5.4.0-29.33-generic 5.4.30
  Uname: Linux 5.4.0-29-generic x86_64
  ApportVersion: 2.20.11-0ubuntu27
  Architecture: amd64
  CasperMD5CheckResult: skip
  CurrentDesktop: ubuntu:GNOME
  Date: Tue May 12 11:20:36 2020
  DisplayManager: gdm3
  InstallationDate: Installed on 2016-09-05 (1344 days ago)
  InstallationMedia: Ubuntu-Server 16.04.1 LTS "Xenial Xerus" - Release amd64 
(20160719)
  RelatedPackageVersions: mutter-common 3.36.1-3ubuntu3
  SourcePackage: gnome-shell
  UpgradeStatus: Upgraded to focal on 2020-03-20 (52 days ago)

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