I have the same bug in Kubuntu 18.04 (I have a AMD GPU). After read this, with the solution / fixed in post 38: https://bugs.launchpad.net/fedora/+source/xserver-xorg-video-ati/+bug/1841718/comments/38 Thanks at Timo Aaltonen (tjaalton) , I can confirnm that, after install the packages of this ppa, the issue was resolved, its perfect fix for this bug.
Thanks. -- 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: [radeon] Rendering of combo boxes and tooltips is broken To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-driver-ati/+bug/1841718/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
