You have been subscribed to a public bug: [Summary] Screen blanking out when using an external 4k monitor with the internal screen turned off in display settings.
[Reproduce Steps] 1. Connect an external 4K monitor 2. Turn off the internal screen in the display settings [Results] Expected: Normal output Actual: Blank Screen [Additional Information] Product Name: Ubuntu 14.04.3 LTS on Dell XPS 13 9343 BIOS Version: BIOS A05 07/14/2015 Kernel Version: 3.13.0-63-generic CPU: Intel(R) Core(TM) i7-5500U CPU @ 2.40GHz GPU: Intel Corporation Broadwell-U Integrated Graphics (rev 09) Monitor: Dell monitor, model P2715Q ** Affects: xorg (Ubuntu) Importance: Undecided Status: New ** Tags: bot-comment trusty -- Screen blanking out when using an external 4k monitor with the internal screen turned off in display settings. https://bugs.launchpad.net/bugs/1500382 You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to xorg in Ubuntu. -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp