I have the same issue on Thinkpad X250 on 20.04 with the following config: ``` Section "Device" Identifier "Intel Graphics" Driver "intel" Option "AccelMethod" "uxa" Option "TearFree" "true" EndSection ```
resulting in being unable to use plasma wayland sessions, random system freezes and strong flickering in sddm. purging `xserver-xorg-video- intel` solved the issue for me -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1864778 Title: Intel Drivers Artifacts after Mesa-Dev Update To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1864778/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs