Here is the output of `journalctl -b-1 | tail` after waiting over a minute on the blank screen and restarting. (In this case the screen wasn't completely blank but had a non-flashing cursor in the top left corner. It doesn't appear every time, only ~1/3 of wake from sleep attempts.)
** Attachment added: "journalctl -b-1 | tail" https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1987134/+attachment/5611972/+files/prevboot.txt -- 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/mutter/+bug/1987134/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs