[Nouveau] [Bug 108520] New: MST DisplayPort HiDPI screen flicker

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=108520

            Bug ID: 108520
           Summary: MST DisplayPort HiDPI screen flicker
           Product: xorg
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
          Assignee: nouveau at lists.freedesktop.org
          Reporter: jhnmlkvch9 at gmail.com
        QA Contact: xorg-team at lists.x.org

HiDPI MST monitor connected via DisplayPort has bad screen flicker (one to
three high speed flickers every 20 seconds or so).

Version of X: 1.20
Nouveau: 1.0.15-3
Kernel: 4.18.16-arch1-1-ARCH

Curiously, the flicker only happens on my Optimus laptop with Hybrid Graphics
disabled (Intel off, Nouveau on). The flicker disappears if Hybrid Graphics is
enabled (Both Intel and Nouveau cards on).

Can't find anything relevant in dmesg, journal etc., but let me know which logs
will be useful and I can upload them.

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