I'm running an Intel HD Graphics 620 (Kaby Lake GT2) (I believe the i915 driver), on a Dell XPS 13.
My apologies, I should have mentioned that this only happens in the session, not in the greeter. In fact, if I log in with the lid open and the external screen plugged in, I can close the laptop screen and keep using the system, but if I then disconnect the laptop from the screen, plug the screen back in, then close the lid, the system suspends (i.e. it seems to be a problem only once the system has been without an external monitor at least once since login). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1732474 Title: Closing lid with external monitor plugged in sends system to sleep To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1732474/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs