*** This bug is a duplicate of bug 1742602 *** https://bugs.launchpad.net/bugs/1742602
I am affected as well. I am running Ubuntu 18.04 LTS on Dell Inspiron 15 with external monitor over HDMI. The screen randomly goes blank for couple of seconds, then returns to normal. It happens consistently. There is only internal graphics on this laptop (Intel HD Graphics 5500) so I don't think it is a hybrid graphics problem as it was mentioned before. Linux kernel: 4.15 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1574617 Title: External monitor keeps going blank To manage notifications about this bug go to: https://bugs.launchpad.net/unity/+bug/1574617/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs