Change screens color temperature

[Giulio Camuffo]

2015-01-27 19:47 GMT+02:00 Matthias Treydte <mt at waldheinz.de>:
>
>> installed "Redshift", a tool to change the color temperature of your
>> screen according to the time of day:
>
>
>> Sadly it's only implemented for Xorg, so I can't "make an app" that uses
>> redshift on Jolla.
>
>
> Redshift already has a "drm" module, which might be compatible with weston.
> I just tried it with
>
>> redshift -v -m drm
>
>
> which does give promising output, but does not change the color temperature.
> That is, at least with i9x5 hardware something seems to be missing. But
> there's hope!

The drm method works only on a console tty in my testings, and then it
doesn't let you switch vt anymore.
I'd also would like to see some way to make it work on a wayland
environment. I haven't looked at its code, but i'm not sure embedding
it in every compositor is doable. Maybe there is space for a common
privileged wayland/dbus protocol to let it communicate with
compositors.


--
Giulio

>
>
> regards,
> -Matthias
>
>
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