Public bug reported: I have configured my PC to lock the screen automatically after a period of inactivity. Often when I come back to my PC I'm unable to login due to gnome shell running at 100% CPU (according to htop).
The only way I can log in is to SSH to the machine from another PC and kill the gnome shell task running at 100% Other than noting this only happens when I try and unlock the screen I haven't been able to find any pattern which can explain this behaviour. I've never had problems with gnome shell while using the PC. Some info about the machine Ubuntu 20.04, Nvidia drivers, 4k monitors ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: gnome-shell 3.36.4-1ubuntu1~20.04.2 ProcVersionSignature: Ubuntu 5.4.0-45.49-generic 5.4.55 Uname: Linux 5.4.0-45-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.11-0ubuntu27.8 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Mon Sep 7 22:01:37 2020 DisplayManager: gdm3 InstallationDate: Installed on 2020-09-05 (2 days ago) InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731) ProcEnviron: LANGUAGE=en_AU:en PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_AU.UTF-8 SHELL=/bin/bash RelatedPackageVersions: mutter-common 3.36.4-0ubuntu0.20.04.2 SourcePackage: gnome-shell UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: gnome-shell (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug focal -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1894666 Title: Gnome high CPU preventing login after screen lock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1894666/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs