[Bug 93461] Skylake VLC/Skype video doesn't work

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=93461

--- Comment #5 from Nikolay <mar.kolya at gmail.com> ---
I did some more digging into this and it looks like that this hardware doesn't
support XVideo somehow (this was briefly mentioned in some ticket, but I'm not
sure I will be find it) - and apparently it needs some sort of emulation that
clearly doesn't work properly.

Work around is adding this to xorg.conf:

Section "Extensions"
Option "XVideo" "Disable"
EndSection

This disables XVideo altogether. This made Skype a bit more usable - no
flickering anymore, but I cannot see image from my own camera. Another problem
is that XVideo was designed to make things faster and disabling it might make
video jerky and eat more power.

As for VLC (and probably mplaer) - there is a way to select different video
output. I think VLC defaults to XVideo because it's like the oldest and
not-that-bad way to effectively render video.

Even though there are apparently semi-working workarounds it seems like broken
XVideo extension is still a bug of Intel driver for these CPUs.

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