[Bug 91378] New: Intel nuc with kernel commit 06ea66b6 gets display into sleep

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91378

            Bug ID: 91378
           Summary: Intel nuc with kernel commit 06ea66b6 gets display
                    into sleep
           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: adrian.sandu at asandu.eu
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 117209
  --> https://bugs.freedesktop.org/attachment.cgi?id=117209&action=edit
Kernel boot params drm.debug=0xe

After kernel commit 06ea66b6 the display goes into sleep after loading
initramfs.

I did a bisect ... Tested with the attached patch .. seems this is the case.

I'm using an Intel NUC D54250WYKH which has an i5-4250U CPU.
The monitor is an DELL P2415Q connected via DP cable.
Both seem to support DP1.2 and 4k resolution.

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