For me it is 100% reproducible with LibreOffice, especially when one quits LO uncleanly and then on the next run it opens a dialog asking about file recovery. Whatever I click in that dialog, LibreOffice will hang for a while and then the whole X session is restarted.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1574266 Title: Xorg freeze [drm] stuck on render ring - gpu hanging too fast, banning To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1574266/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs