Nouveau - Jul 2015 - [Bug 91354] New: [Quadro K610M] "xset dpms force on" blinks the screen

https://bugs.freedesktop.org/show_bug.cgi?id=91354

            Bug ID: 91354
           Summary: [Quadro K610M] "xset dpms force on" blinks the
screen
           Product: xorg
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
          Assignee: nouveau at lists.freedesktop.org
          Reporter: vincent-fdt at vinc17.net
        QA Contact: xorg-team at lists.x.org

When "xset dpms force on" is executed, the screen blinks: it becomes
black for
a fraction of second (this may be visible on the whole screen or just at the
bottom part).

This is particularly annoying because it is executed by VLC every 30 seconds
via "xdg-screensaver reset" when playing videos.

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https://bugs.freedesktop.org/show_bug.cgi?id=91354

--- Comment #1 from Ilia Mirkin <imirkin at alum.mit.edu> ---
How is the relevant screen connected? What GPU is this? (Looking for a GKxxx
type code.)

Do you also get a blink when you just run 'xrandr'?

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Vincent Lefevre <vincent-fdt at vinc17.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[Quadro K610M] "xset dpms   |[NV108] Quadro K610M:
"xset
                   |force on" blinks the screen |dpms force on" blinks
the
                   |                            |screen

--- Comment #2 from Vincent Lefevre <vincent-fdt at vinc17.net> ---
(In reply to Ilia Mirkin from comment #1)
> How is the relevant screen connected?
This is a HP ZBook 15 G2 laptop with its screen (no external monitor).
> What GPU is this? (Looking for a GKxxx type code.)
lspci gives:

01:00.0 VGA compatible controller: NVIDIA Corporation GK208GLM [Quadro K610M]
(rev a1)

And from the dmesg saved in another bug report:

[   14.178208] nouveau  [  DEVICE][0000:01:00.0] Chipset: GK208 (NV108)
> Do you also get a blink when you just run 'xrandr'?
No.

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Martin Peres <martin.peres at free.fr> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |MOVED
             Status|NEW                         |RESOLVED

--- Comment #3 from Martin Peres <martin.peres at free.fr> ---
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been
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