I think this is more likely https://gitlab.freedesktop.org/drm/amd/-/work_items/3709. This disproportionally affects Xorg more heavily because of how it uses vblank.
Wayland compositors are not affected. So you should be able to switch away from Xorg for a solution if this is the same root cause. FWIW - there are kernel commits that help this behavior, but you might be missing them. They came in the 7.1 kernel series. Since 7.0 is EOL, Canonical may need to do some work to backport them. Can you please upgrade to the latest kernel offered by Ubuntu and see if you can reproduce (7.0.0-38.38)? If you can reproduce someone should look into porting https://github.com/torvalds/linux/commit/754003486c3cc95f2fcb9d6b71a779047d6db95c and the various fixups to this. ** Also affects: linux (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2167302 Title: [linux-firmware] DMCUB firmware regression causes severe input lag on Navi 33 (RX 7600) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2167302/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
