search

zb3 / gnome-gamma-tool

A command-line tool that lets you change gamma in GNOME and Cinnamon (with Wayland). You can also adjust contrast and brightness. It works by creating a color profile with the VCGT table, so that changes are persistent and don't interfere with other settings like night light.
115 stars 11 forks source link

Tool worked three times only #21

Closed mzryz closed 6 months ago

mzryz commented 6 months ago

Hello there,

I am attempting to use this software on Manjaro Linux. I have been simply only attempting to change gamma with the following:

./gnome-gamma-tool.py -g 0.8

I tried a few different variations of gamma, to see which I liked, it worked about 3 times. Each time I said 'N' to saving my settings. But now the program has no effect on screen brightness at all. I even rebooted my computer.

I tried changing contrast, which oddly, still works. But it ignores the gamma value each time.

Intel GPU on Wayland. Gnome version 45.4.

zb3 commented 6 months ago

Does it also ignore gamma if you set it to a value you didn't set earlier? Does

rm .local/share/icc/gnome-gamma-tool-*
rm .local/share/icc/.goutputstream-*

help?

After you create the profile with GGT, do you see it in Settings -> Color panel? I remember that I sometimes had to click on the correct profile multiple times, but since you say contrast works.. this confuses me :O

mzryz commented 6 months ago

Hi zb3,

I think removing those files might have fixed it. Although I could have sworn that my terminal said that no files were found. Anyway, after doing that, I seem to be able to change my gamma fine. I just went from 0.3>0.9 pressing 'N' each time and so far it seems OK.

I guess I'll close this? But I'm as confused as you :)