[FusionDev] [Bug 781] Inconsistent random colored window decorations and shadows

[bugzilla at bugs.opencompositing.org]

http://bugs.opencompositing.org/show_bug.cgi?id=781





--- Comment #39 from jdeslip at berkeley.edu  2008-04-17 19:00:18 ---
(In reply to comment #38)
> (In reply to comment #37)
> > Does turning off any kind of translucency of the decorations make a difference?
> > 
> > Is this a 64bit machine?
> > 
> > I doubt damage events beating the X server's rendering to the framebuffer is
> > the cause as even if that is happening there should never be a state where
> > anything is miss-colored, except for some initial garbage but I find it
> > unlikely that the garbage would happen to look like some miss-colored
> > decorations.
> > 
> > Server side convolution filters are used extensively for the shadows and
> > translucency of decorations. As this seem to be a nvidia driver specific
> > problem, I suspect that it's the handling of these convolution filters in their
> > driver that is causing issues. I doubt that nvidia is accelerating these
> > filters but how their driver interacts with the general software code for these
> > filters might be the problem.
> > 
> 
> I have a 32 bit machine, and have the window decoration problem (but never have
> the wrong colored shadows).
> 
> Well.  The window decoration part of this bug does look pretty much like
> garbage see the first couple links to screenshots posted here:
> http://www.nvnews.net/vbulletin/showthread.php?t=104822
> 

There is also a good screenshot of the window dec problem in Bug 811


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