Is there any software for Ubuntu 22.04 to dim the screen with control over hue, gamma, saturation, brigthness and contrast?
I work in this desktop environment 10 hours a day so I need a low level of light to be comfortable reading the screen.
I want 2% contrast and 2% brighness on my laptop screen.
I can't work with third party software. I can't install any of them because a lot of them don't work with my version of Ubuntu.
If there is a way to do this with a terminal command, that would also be helpful.
ive tried xcalib but it didn't work it give me an error
xcalib -b 20% -v
Error - unsupported ramp size 0
