Hi all,

Can someone please help me to understand what I need to do to change my gamma settings to better match my personal preference for color output?

Here is my output from xrandr:
root@kali:~# xrandr
xrandr: Failed to get size of gamma for output default
Screen 0: minimum 1920 x 1080, current 1920 x 1080, maximum 1920 x 1080
default connected 1920x1080+0+0 0mm x 0mm
1920x1080 0.0*
root@kali:~#

I tried xrandr -d Screen 0 --gamma X:X:X, and didn't notice any changes. I also tried the xgamma command with no success. I'm not sure what I'm missing...