Hark: 1) For one who is using 16.04, an upgrade for the X stack is available following instructions from https://wiki.ubuntu.com/Kernel/LTSEnablementStack . Could you please advise to the results?
2) Regarding the package xserver-xorg-video-ati, this is fixed as per https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video- ati/+bug/1821505/comments/4 . ** Changed in: xserver-xorg-video-ati (Ubuntu) Status: New => Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1821505 Title: [radeon] screen cannot be turned back on after some time of inactivity To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/1821505/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs