Thank you for looking into this. The issue still exists when using mainline kernel v4.19-rc5 or v4.3.6-wily.
I did not upgrade my Ubuntu installation. However the black screen occurs using the Ubuntu 18.04.1 live image, too. But the black screen did not occur using the latest Ubuntu 16.04 live image. With "live image" I am refering to "installation media" / "startup disk". The only "upgrade" I did was removing my secondary display. ** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1793934 Title: Black Screen After A Few Minutes To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1793934/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs