Alright. Please first ensure you have followed all the steps in comment #3. Then if there's still no evidence of a crash we can assume it's a freeze. The next thing to try then is to force it to dump core during the freeze (from an ssh login) by sending some signal to the process like:
kill -USR2 PID Then we would be able to analyse it as a crash (assuming the automated crash reporting picks it up). But if you want to do the debugging locally yourself then feel free. Just paste the stack trace you find here so we can see what you see. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to mutter in Ubuntu. https://bugs.launchpad.net/bugs/1873401 Title: xorg lock-up on GPU hotplug To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1873401/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
