Thanks. Please try these fixes separately so we can see which one if any avoids the problem:
------------------------------------------------ 1. Edit /etc/default/grub and change: GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" to GRUB_CMDLINE_LINUX_DEFAULT="quiet splash i915.enable_psr=0" 2. Run: sudo update-grub 3. Reboot. ------------------------------------------------ 1. Edit /etc/environment and add a line: MUTTER_DEBUG_ENABLE_ATOMIC_KMS=0 2. Reboot. ------------------------------------------------ -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/1948778 Title: Random flashes in gnome-shell Status in gnome-shell package in Ubuntu: Incomplete Bug description: Ubuntu 22.04 development branch up to date to latest @ 26/10/2021 kernel 5.13.0-19-generic While working around on the desktop i'm getting short screen flashes like a screenshot style i cant reproduce them, they seem to come on random like every few minutes journal logs dont record anything while they occur this only happens on wayland, tested a long session on xorg where they dont occur ProblemType: Bug DistroRelease: Ubuntu 22.04 Package: gnome-shell 40.5-1ubuntu2 ProcVersionSignature: Ubuntu 5.13.0-19.19-generic 5.13.14 Uname: Linux 5.13.0-19-generic x86_64 ApportVersion: 2.20.11-0ubuntu70 Architecture: amd64 CasperMD5CheckResult: unknown CurrentDesktop: ubuntu:GNOME Date: Tue Oct 26 11:12:30 2021 DisplayManager: gdm3 RelatedPackageVersions: mutter-common 40.5-1ubuntu2 SourcePackage: gnome-shell UpgradeStatus: No upgrade log present (probably fresh install) mtime.conffile..etc.xdg.autostart.gnome-shell-overrides-migration.desktop: 2021-10-23T19:12:47.175230 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1948778/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
