[Bug 79999] Mathematica 3D graphics not displayed anymore with xf86-video-intel-2.99.912-125.1.x86_64

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=79999

--- Comment #14 from Leo Wolf <jclw at ymail.com> ---
Yes, that behaves as it should.

(In reply to comment #13)
> Ok, can you try
> 
> diff --git a/src/sna/sna_dri2.c b/src/sna/sna_dri2.c
> index efc790f..3d3c50d 100644
> --- a/src/sna/sna_dri2.c
> +++ b/src/sna/sna_dri2.c
> @@ -1485,6 +1485,8 @@ can_xchg(struct sna * sna,
>         WindowPtr win = (WindowPtr)draw;
>         PixmapPtr pixmap;
>  
> +       return false;
> +
>         if (draw->type == DRAWABLE_PIXMAP)
>                 return false;
> 
> to see if it using xchg swaps or if it is a side-effect of that patch on the
> regular code that broke Mathematica?

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