Happens to me too intermittently Dell PC's with pre-installed Ubuntu 16.04 (I have 6 of them and it will occasionally happen on any of them). I've attached the syslog for one occurence.
** Attachment added: "syslog" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1707695/+attachment/5027949/+files/syslog.1 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1707695 Title: radeon 0000:03:00.0: ring 0 stalled for more than 10000msec To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1707695/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
