Bug#765969: Bug#771133: xserver-xorg-video-intel: colored line on right side / bottom of video

[Rémi Denis-Courmont]

Le jeudi 27 novembre 2014, 11:39:52 maximilian attems a écrit :
> xf86-video-intel upstream says:
> "it's a bug in vlc.
> they are supplying an image larger than the surface they wish to scale
> and then complain when the extra pixels are sampled during scaling.
> the issue is that they are not initialising those extra pixels
> correctly - it should be padded." -ickle

That is a rather innovative way to word it.

VLC supplies an image larger than the source rectangle that it wishes to 
scale. The Intel seems to blend pixels from outside the source rectangle.

How is that a VLC bug?!

> Hence keep bugging vlc guys, will close xorg driver bug report.

It is not the first time that someone blames VLC for not working around quirks 
in the Intel graphic drivers.

You can try this work around, which fills invisible pixels that the Intel 
drivers incorrectly blends with the visible pixels.

If Intel cannot provide working XVideo, they should not provide an XVideo 
adapter in X11 (or alternatively, not provide the XVideo extension at all). 
VLC will happily fallback to OpenGL then.

-- 
Rémi
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