[Bug 91720] New: [SKL] display gets black screen for some time

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91720

            Bug ID: 91720
           Summary: [SKL] display gets black screen for some time
           Product: DRI
           Version: XOrg git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: januszmk6 at gazeta.pl
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 117846
  --> https://bugs.freedesktop.org/attachment.cgi?id=117846&action=edit
dmesg

I have connected 2x hdmi full hd + 2560x1440 + 1x DP full hd.
on display with 2560x1440 resolution I constantly get black screens and
horizontal strips over the screen. I am sure now that its not problem of cable
because I tested it on my external GPU and recently I get black screen on other
monitors from time to time but not so often as on 1440p monitor. I also tested
windows, it doesnt gets black screens.
This also happens in TTY.
Also, don't know if its luck or not, but when I connected only one monitor,
1440p over DP, I didn't get this problem.  

This is video how it looks like: https://www.youtube.com/watch?v=fB2pJsD9NFQ

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