Set property in RandR

[Dave Airlie]

2009/3/12  <GordonYuan at viatech.com.cn>:
> Dear Matthias:
>    You mean that the driver should set the output mode if necessary when the property changes. Maybe we can call the output.mode_set() in the function output.set_property().
>    Thanks for your kind help!
> Best wishes,
> Gordon

Its driver specific, so if say a TMDS coherent option is changed then
the mode needs to be reset,

Or if you have TV or LVDS scaling options you might also, need to change it.

However you might have some values that don't require it, like backlight control

Dave