https://bugs.kde.org/show_bug.cgi?id=365455
Bug ID: 365455 Summary: Second external monitor does not turn on most of the times Product: kwin Version: 5.7.0 Platform: Other URL: https://www.youtube.com/watch?v=Vhc85L2PRdI OS: Linux Status: UNCONFIRMED Severity: normal Priority: NOR Component: general Assignee: kwin-bugs-n...@kde.org Reporter: darkba...@linuxsystems.it https://www.youtube.com/watch?v=Vhc85L2PRdI I made a video to demostrate the problem. I have two external monitors attached to a single mini displayport MST cable and when I turn on the laptop both monitors are turned on up to the kdm login. After the login the monitors get alternately turned off and 100% of the times the right monitors is turned off when I reach the desktop. Most of the times it is not possibile to turn on that monitor again, the video shows one of the few times when I had been able to turn it on using the disable/enable trick. I'm using Archlinux on Intel Broadwell (DELL XPS 13 9343 + 2 x DELL U2515H on DP MST). Kernel 4.4 LTS (also tried 4.5 and 4.6). I get this issue with both xf86-video-intel and modesetting. Reproducible: Always -- You are receiving this mail because: You are watching all bug changes.