KMS to multiple displays, was Re: Building a graph for HDR10 output - stumped at sink

Nirbheek Chauhan nirbheek.chauhan at
Sat Apr 23 10:54:09 UTC 2022

On Sat, Apr 23, 2022 at 3:30 AM Nicolas Dufresne via gstreamer-devel
<gstreamer-devel at> wrote:
> Though, to get out of the toy land, kmssink would need perhap to be ported to
> use atomic API, which notably allow trying calls without affecting other
> surfaces. That would build up to the need for a shared display manager (also
> known as a compositor), specially to coordinate mode setting. Which mostly boils
> down to, why not use a proper compositor ?

Presumably the HDR10 requirement precludes the use of a compositor? Or
do we now have a Linux compositor that correctly implements HDR


More information about the gstreamer-devel mailing list