Confirmed this is an i915 driver issue and commit in v6.9-rc1 fixes it. c08c364102 drm/i915: Bypass LMEMBAR/GTTMMADR for MTL stolen memory access (https://patchwork.freedesktop.org/patch/576970/)
Thank you all for your help. Let's invalid it. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2068567 Title: Irregular frame rate in fullscreen glxgears on Intel Meteor Lake To manage notifications about this bug go to: https://bugs.launchpad.net/mutter/+bug/2068567/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
