Thanks for the bug report. That's a kernel crash in the nouveau driver. But that driver is not well supported so we would usually recommend the official Nvidia driver instead. Unfortunately:
1. Your GeForce 310M GPU requires the Nvidia 340 driver only. Newer drivers don't support that GPU; and 2. The Nvidia 340 driver is no longer supported by Nvidia and no longer shipped in Ubuntu 21.04. I suggest using only Ubuntu 20.04 on this machine, which has a working version of the Nvidia 340 driver that you can install via the 'Additional Drivers' app. ** Package changed: xorg (Ubuntu) => linux (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1940154 Title: Xorg freeze (nouveau/ttm use-after-free with full-screen video) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1940154/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
