Thanks for the bug report. Can you take a photo of the screen when the problem happens next, and attach it here?
** Tags added: nvidia -- 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/1969266 Title: application windows frozen after screen blanking Status in GNOME Shell: Unknown Status in gnome-shell package in Ubuntu: Incomplete Bug description: When I want to use my computer after the screen has blanked, I often (about half of the time) find that the open applications are frozen. I can bring them back to life by restarting X or by cycling through the windows (ALT + TAB). Not a major bug certainly annoying as it is happening time and again. ProblemType: Bug DistroRelease: Ubuntu 22.04 Package: gnome-shell 42.0-2ubuntu1 ProcVersionSignature: Ubuntu 5.15.0-25.25-generic 5.15.30 Uname: Linux 5.15.0-25-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.11-0ubuntu82 Architecture: amd64 CasperMD5CheckResult: pass CurrentDesktop: ubuntu:GNOME Date: Sat Apr 16 09:53:51 2022 DisplayManager: gdm3 InstallationDate: Installed on 2022-03-27 (19 days ago) InstallationMedia: Ubuntu 22.04 LTS "Jammy Jellyfish" - Alpha amd64 (20220326) RelatedPackageVersions: mutter-common 42.0-3ubuntu2 SourcePackage: gnome-shell UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/gnome-shell/+bug/1969266/+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