Screen blanking out when using an external 4k monitor with the internal screen turned off in display settings.

[Pedro Coca]

[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

[Ubuntu Foundations Team Bug Bot (crichton)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that your bug report is not filed about a specific source package though, rather it is just filed against Ubuntu in general. It is important that bug reports be filed about source packages so that people interested in the package can find the bugs about it. You can find some hints about determining what package your bug might be about at https://wiki.ubuntu.com/Bugs/FindRightPackage. You might also ask for help in the #ubuntu-bugs irc channel on Freenode.

To change the source package that this bug is filed about visit https://bugs.launchpad.net/ubuntu/+bug/1500382/+editstatus and add the package name in the text box next to the word Package.

[This is an automated message. I apologize if it reached you inappropriately; please just reply to this message indicating so.]

[penalvch (penalvch)]

Pedro Coca, thank you for reporting this and helping make Ubuntu better. Could you please run the following command from a terminal as it will automatically gather and attach updated debug information to this report:

apport-collect -p xorg 1500382

Please ensure you have the package xdiagnose installed, and that you click the Yes button for attaching additional debugging information.

When reporting bugs in the future please use apport by using 'ubuntu-bug' and the name of the package affected. You can learn more about this functionality at https://wiki.ubuntu.com/ReportingBugs .

[Launchpad Janitor (janitor)]

[Expired for xorg (Ubuntu) because there has been no activity for 60 days.]