Thanks for making the bug SRU compliant, I've uploaded a new version. In the mean time you can probably test it using the ppa at https://launchpad.net/~ci-train-ppa-service/+archive/ubuntu/4267
** Description changed: In Ubuntu 20.04.1 [focal-proposed]: [ Impact ] GNOME Shell crash after updating mutter to version 3.36.6-ubuntu0.20.04.1. With the old version (3.36.4-0ubuntu0.20.04.1) and (3.36.4-0ubuntu0.20.04.2), all works fine. [ Test case ] Steps to reproduce the error: 1) Lock screen; 2) Turn off the display; 3) Turn on the display; And the Gnome Shell crash and show us a blank screen with the message: "Oh no! Something has gone wrong." [ Regression potential ] - This bug was introduced by Marco Trevisan (Treviño) in the bug 1892440. + This very fix was already handled as part of bug #1889090 and we had no regression report,. + + However, one possible is that the screen size is not set properly for + the session, or that panning is enabled. [ Workaround ] Downgrade the libmutter package temporarily. - ProblemType: Bug - DistroRelease: Ubuntu 20.04 + ProblemType: BugDistroRelease: Ubuntu 20.04 Package: mutter 3.36.6-1ubuntu0.20.04.1 ProcVersionSignature: Ubuntu 5.4.0-49.53-generic 5.4.65 Uname: Linux 5.4.0-49-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.11-0ubuntu27.9 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Wed Sep 23 15:57:17 2020 InstallationDate: Installed on 2020-08-15 (38 days ago) - InstallationMedia: Ubuntu 20.04.1 2020.08.15 LTS "Custom Focal Fossa" (20200815) - SourcePackage: mutter + InstallationMedia: Ubuntu 20.04.1 2020.08.15 LTS "Custom Focal Fossa" (20200815)SourcePackage: mutter UpgradeStatus: No upgrade log present (probably fresh install) modified.conffile..etc.default.apport: # set this to 0 to disable apport, or to 1 to enable it # you can temporarily override this with # sudo service apport start force_start=1 enabled=0 mtime.conffile..etc.default.apport: 2020-08-15T17:44:36 ** Changed in: mutter (Ubuntu) Status: New => In Progress ** Changed in: mutter (Ubuntu) Importance: Undecided => High ** Changed in: mutter (Ubuntu) Assignee: (unassigned) => Marco Trevisan (Treviño) (3v1n0) ** Also affects: mutter (Ubuntu Focal) Importance: Undecided Status: New ** Changed in: mutter (Ubuntu) Status: In Progress => Fix Released ** Changed in: mutter (Ubuntu Focal) Importance: Undecided => High ** Changed in: mutter (Ubuntu Focal) Status: New => In Progress ** Changed in: mutter (Ubuntu Focal) Assignee: (unassigned) => Marco Trevisan (Treviño) (3v1n0) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1896818 Title: Gnome-shell crash after turn display off in mutter 3.36.6-ubuntu0.20.04.1 (NVIDIA) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1896818/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs