This might be specific to AMD. What kernel driver does 'lspci -k' show for the GPU? Also, could you attach a Xorg log?
** Also affects: gtk+3.0 (Ubuntu) Importance: Undecided Status: New ** Package changed: gnome-shell (Ubuntu) => mutter (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1841718 Title: Rendering of combo boxes is broken To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gtk+3.0/+bug/1841718/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs