OK this sounds like an Nvidia kernel driver bug, or some other kernel driver bug.
P.S. If you have TLP installed then please remove it as it is known to also cause bugs like this. ** No longer affects: mutter (Ubuntu) -- 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/1987134 Title: Black screen after wake from S3 suspend on Nvidia proprietary driver To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-515/+bug/1987134/+subscriptions -- desktop-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
