*** This bug is a duplicate of bug 1751414 *** https://bugs.launchpad.net/bugs/1751414
On Xubuntu, can you try downgrading the package xubuntu-default-settings from version 18.04.2 to version 18.04.1? Maybe it's related to what I'm seeing in bug #1752798 (you can find the older package here: https://launchpad.net/ubuntu/+source/xubuntu-default- settings/18.04.1/+build/13749132 ) -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1752938 Title: Upgrading Ubuntu 18.04 disables GPU hardware acceleration To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1752938/+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