Public bug reported: Wayland OpenGL's performance has dramatically suffered with GNOME 50 (Ubuntu 26.04 LTS). Vulkan does not seem effected by it and neither is Kwin (Plasma).
You can find a more thorough description and my playback program for testing it with a 4K movie of your choice. https://github.com/ggarra13/mrv2/issues/494 Thank you in advance and congratulations on the LTS release. ProblemType: Bug DistroRelease: Ubuntu 26.04 Package: mutter (not installed) ProcVersionSignature: Ubuntu 7.0.0-15.15-generic 7.0.0 Uname: Linux 7.0.0-15-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.34.0-0ubuntu2 Architecture: amd64 CasperMD5CheckResult: pass CurrentDesktop: ubuntu:GNOME Date: Wed May 20 18:27:26 2026 InstallationDate: Installed on 2025-11-17 (184 days ago) InstallationMedia: Ubuntu 25.04 "Plucky Puffin" - Release amd64 (20250415.3) SourcePackage: mutter UpgradeStatus: Upgraded to resolute on 2026-05-20 (1 days ago) ** Affects: mutter (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug resolute wayland-session -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2153492 Title: Regression in OpenGL Wayland performance (not NVidia issue) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/2153492/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
