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