[Bug 100926] New: [ELK] HP Compaq 8000 E7500 displayport doesn't activate

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=100926

            Bug ID: 100926
           Summary: [ELK] HP Compaq 8000 E7500 displayport doesn't
                    activate
           Product: DRI
           Version: DRI git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: tomi.p.sarvela at intel.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

Created attachment 131199
  --> https://bugs.freedesktop.org/attachment.cgi?id=131199&action=edit
eagle lake dp dmesg

HP Compaq 8000 E7500 displayport shows timeout errors in log, and doesn't come
up at all. Monitor is IBM ThinkVision, connected with straight cable. VGA
works.

Default Ubuntu kernel and DRM-Tip show same symptoms: monitor shortly coming
out of power save, then going back and no picture.

BIOS screen shows up through DP well enough.

DRM-Tip dmesg with drm.debug=0xe attached.

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