Reproduced it with the current 18.04. - resume after stand-by - switch to a different VT solves the problem
There are a couple of similar bugs and suggestions to disable Wayland in the /etc/gdm3/custom.conf But for me, disabling Wayland doesn't help at all -- 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/1752709 Title: Left mouse button gets stuck down (in software), usually after suspend/resume To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1752709/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs