[Bug 65250] [Regression][SNA] KSnapshot started to capture rectangular region boundaries and size toolbox when compositing is enabled since xf86-video-intel 2.21.7

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=65250

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

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

--- Comment #1 from Chris Wilson <chris at chris-wilson.co.uk> ---
Once again KDE/Qt and kwin amaze me by their inefficient rendering. At least it
found a bug in my code. The issue here is that kwin continues to render the
static composited image (that is the cause of the black flash), and the DDX
failed to undo its shallow copy of the scanout used by ksnapshot for its region
selection GUI.

commit 66ad4d6f3c990bd40d816b4a22122bbf64786e4c
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Sun Jun 2 12:13:46 2013 +0100

    sna/dri: Undo any COW before performing a copy with DRI2CopyRegion

    Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=65250
    Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>

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