Similar problem here, first few resumes only the desktop background corrupts then after a few more more the entire desktop goes, please see attached:
01:00.0 VGA compatible controller: NVIDIA Corporation GT216M [GeForce GT 330M] (rev a2) Using NVIDIA binary driver - version 340.108 from nvidia-340 ** Attachment added: "Screenshot from 2020-02-15 16-19-52.png" https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1855757/+attachment/5328428/+files/Screenshot%20from%202020-02-15%2016-19-52.png -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to mutter in Ubuntu. https://bugs.launchpad.net/bugs/1855757 Title: [nvidia] Background image corrupted after standby To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1855757/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs