HDR support in Wayland/Weston

Michel Dänzer michel at daenzer.net
Thu Mar 7 16:00:36 UTC 2019

On 2019-03-07 1:43 p.m., Kai-Uwe wrote:
> Am 07.03.19 um 11:15 schrieb Michel Dänzer:
>> On 2019-03-07 8:05 a.m., Chris Murphy wrote:
>>> On Wed, Mar 6, 2019 at 10:02 PM Graeme Gill <graeme2 at argyllcms.com> wrote:
>>>> [ And why should Linux/Wayland be crippled compared to
>>>>   every other system ? I can and do do things like fire up
>>>>   a test patch display using ArgyllCMS/dispwin in one corner of my
>>>>   screen while running ArgyllCMS/spotread in another window to
>>>>   measure the patches. There's no reason not to, and every reason
>>>>   to be able to. ]
>>> Of course. It can take 5-30 minutes to do a calibration and
>>> characterization. In particular if I have 2, 3 or even 4 displays
>>> connected I'd want to calibrate them in sequence while the others are
>>> being used for useful tasks.
>> It sounds like KMS leases could be a pretty good fit for a calibration
>> application. It can lease each output individually from the Wayland
>> compositor and fully control it using KMS APIs, while the Wayland
>> compositor continues running normally on other outputs.
> I am afraid, this concept reads quite exotic for me non kernel
> developer. Would you mind elaborating on that feature without some
> example code or reference on how to write such and how it integrates in
> a DE.

I'll leave that to others who know more about KMS leases.

Earthling Michel Dänzer               |              https://www.amd.com
Libre software enthusiast             |             Mesa and X developer

More information about the wayland-devel mailing list