When I try `Ubuntu on Wayland`, the behavior is, indeed, different. After disconnecting HDMI, the system never suspends (so I cannot reproduce the problematic behavior), even when I close the lid. However, `tmux` hangs and loadavg stays at 1. After I `kill -9` tmux and force suspend using the power button, I can login fine.
Thus it appears that the problem is not reproducible on Wayland -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1806797 Title: Frozen (black) screen on resume/unlock To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1806797/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs