Thanks for your hard work. We have now established the original bug here was caused by LP-PPA- oibaf-graphics-drivers, so not a bug in Ubuntu itself. That makes this bug report 'Invalid'.
The next problem you encountered is bug 1727356. Only older Intel CPUs (Core2 or older) will have a problem with that. It is now fixed in Ubuntu Updates but the fix won't be included in the ISO until version 18.04.2. The remaining issues should be discussed in new bug reports. Please remember to keep each bug report about one issue only. ** Changed in: gnome-shell (Ubuntu) Status: Incomplete => Invalid ** Changed in: xorg-server (Ubuntu) Status: Incomplete => Invalid -- 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/1803504 Title: Screen stops redrawing sometimes when moving windows To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1803504/+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