[Bug 88826] [sna suse] screen is not redrawn after dpms on

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=88826

Chris Wilson <chris at chris-wilson.co.uk> changed:

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

--- Comment #6 from Chris Wilson <chris at chris-wilson.co.uk> ---
I think I have it resolved:

commit 3855a728e5522452f0d6208e569ef23389d32d20
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Tue Feb 3 17:06:27 2015 +0000

    sna: Always restore the scanout on DPMS on

    As we may exchange the frontbuffer whilst the outputs are hidden (DPMS
    off), when we turn them back on, unless we force the CRTCs to be
    updated, we may end up simply showing a stale scanout buffer not the
    current frontbuffer. If the two are same, it will just be a kernel
    no-op.

    Reported-by: Jiri Slaby <jirislaby at gmail.com>
    Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=88826
    Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>

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