[Bug 92018] DPMS blanking breaks Intel TearFree

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=92018

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

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

--- Comment #9 from Chris Wilson <chris at chris-wilson.co.uk> ---
And thanks for the bug report and feedback.

commit be3748802398a741208715233d36935378ceff58
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Sun Oct 25 15:41:10 2015 +0000

    sna: Always flag the shadow buffer after resetting it fr DPMS on

    When switching the outputs back on, we show the current front buffer and
    so for TearFree we always then need to flag the front buffer as active.
    Failing to do so left us rendering straight onto the scanout, defeating
    the notion of TearFree.

    Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=92018
    Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>

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