[Nouveau] [Bug 83597] New: [NVE6] blank VGA screen after suspend

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=83597

          Priority: medium
            Bug ID: 83597
          Assignee: nouveau at lists.freedesktop.org
           Summary: [NVE6] blank VGA screen after suspend
        QA Contact: xorg-team at lists.x.org
          Severity: normal
    Classification: Unclassified
                OS: All
          Reporter: prg at cooco.de
          Hardware: Other
            Status: NEW
           Version: unspecified
         Component: Driver/nouveau
           Product: xorg

Created attachment 105875
  --> https://bugs.freedesktop.org/attachment.cgi?id=105875&action=edit
dmesg

Since "bf0eb89 drm/nv50-/disp: audit and version DAC_PWR method" my VGA monitor
connected via DVI-I stays black after suspend/resume. The backlight is still on
and can be toggled with xrandr --off/--auto, but I don't get any image.
rmmod+modprobe nouveau does not help either, I need to reboot to get an image
back.
Another monitor connected via DVI-D is still fine.
I can't see anything obvious in dmesg.

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