Thanks!
To remove the PPA:
1. sudo apt install ppa-purge
2. sudo ppa-purge -o oibaf # or something like that!?
3. Reboot
Now tell us if the problem still happens. If it does then please:
4. dpkg -l > allpackages.txt
and send us the file 'allpackages.txt'.
5. sudo apt install mesa-utils
6. glxinfo > glxinfo.txt
and send us the file 'glxinfo.txt'.
** Summary changed:
- Xorg freeze
+ Screen stops redrawing sometimes when moving windows
--
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
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