[PATCH 2/2] randr12: Initialize and keep track of updates to VidMode extension gamma value.

[Maarten Maathuis]

It is disabled when a randr 1.2 driver is present with gamma hooks,
this is to avoid clashes betwen the two. If it is terribly important,
then you could try to hook up old extensions to the new system. The
legacy gamma system itself is very odd (iirc from the last time i
checked it), and if it were up to me i would kill it. I'm not talking
about the interfaces, but the actual gamma system, which dates from
some crazy era.

Maarten.