[Bug 105465] New: Computer boots into black screen when MST is enabled

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=105465

            Bug ID: 105465
           Summary: Computer boots into black screen when MST is enabled
           Product: DRI
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: DRM/Intel
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: johan.bjornehall at gmail.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
                CC: intel-gfx-bugs at lists.freedesktop.org

On kernel 4.15.8 (and a way back), computer boots into black screen every time
with multiple monitors connected with a single DisplayPort cable. Intel i3-6100
(Skylake) with Intel HD Graphics 530.

If MST is disabled in GRUB with i915.enable_dp_mst=0, the issue goes away but
leaves me with mirrored screens.

This issue occurred somewhere in november 2017, but I didn't file a bug report
because of the belief of misconfiguration.

More information about the symptom for the issue, can be obtained here.
https://bbs.archlinux.org/viewtopic.php?id=233138

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