the kernel driver "crashed", which is why the screen froze You could try booting with i915.enable_ppgtt=0 to see if the bug goes away, or a newer kernel. 4.18 is available via 'linux-image-generic- hwe-18.04'.
-- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1820031 Title: My Ubuntu 18.04 GUI seems frozen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1820031/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
