Thanks for the bug report. Firstly, you seem to have an AMD Radeon GPU, but the Nvidia driver is installed. Please uninstall the Nvidia driver in case that is causing problems.
Secondly, next time a crash happens please: 1. Wait 10 seconds 2. Reboot 3. Run this command: journalctl -b-1 > prevboot.txt 4. Attach the resulting text file here. Finally, please check the system for crashes by following all of the steps listed in: https://wiki.ubuntu.com/Bugs/Responses#Missing_a_crash_report_or_having_a_.crash_attachment ** Package changed: xorg (Ubuntu) => ubuntu ** Changed in: ubuntu Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1919408 Title: Xorg freeze To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1919408/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
