I noticed another issue recently: when the device displays woke up after a period of inactivity, the picture of the external (!) display was stretched vertically by a factor of 2, with the bottom half missing. I took a screenshot, but that looked OK and didn’t reflect what I actually saw.
Also, with the original issue, I tried switching to a text console (Ctrl+Alt+F1) and back to the GUI (Ctrl+Alt+F7), but the internal display remained black and came back to life long after the main one. Looks like switching to a text console and back to the GUI has no effect. Currently still on 16.04. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1715749 Title: Intermittent black screen on HP EliteBook 840 G1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1715749/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
