Is it possible to use redshift to change screen brightness manually?

1 réponse [Dernière contribution]
GrevenGull
Hors ligne
A rejoint: 12/18/2017

When I try to use $ redshift -b N 0.5 or $ redshift -b 0.5 I get:

"Latitude and longitude must be set."

Does anybody have any idea what it is I am missing here? I mean obviously I'm told I must set the Latitude and longitude, but it seems strange that I must do that in order to manually set the brightness.

GrevenGull
Hors ligne
A rejoint: 12/18/2017

I ended up following this comment https://trisquel.info/en/forum/redshift-trisquel-8#comment-132508 and just swapped the numbers for my city.

And then I run redshift -O 6500 -b 0.7

6500 is the neutral temperature and 0.7 is the brightness value where 1.0 is max.

So I got it to work like that, but if anyone know a simpler method, please shout out