Glitch in newer drm-next/drm-radeon-testing

[James Simmons]

> > Apologies for such an unspecific description, and for what almost seems
> > like a support request for MythTV. I wouldn't post here if I were not
> > 100% sure it must be related with the recent drm changes.
> 
> Note that the DRM APIs are intended for use by userspace components of
> graphics drivers / API libraries, not applications directly. MythTV
> shouldn't use the DRM directly for synchronization but rather use GLX
> synchronization APIs.

Tho not the case for MythTV on a embedded device requiring apps to use GLX 
wuld be to heavy. I would agree libdrm should be used.