How to adjust brightness in Kali VM?

Sks · January 17, 2025, 1:59pm

This might sound like an issue outside of qubes but i think it is a qubes issue. I cant change the brightness in my linux qube specifically kali linux. I have tried changing the brightness with xrandr and it didn’t work also with xbacklight. I think the problem is the virtual screen maybe it doesnt work with vm. Ultimately if it isnt possible to change from the qube could there be a solution from dom? Any help is appreciated.

Sks · January 17, 2025, 2:02pm

Here are two commands i tried :
xrandr --output [displayID] --brightness [X.XX]
xbacklight -set 50
Nothing changed

barto · January 17, 2025, 2:48pm

You have to run the commands in the qube which controls the display, usually dom0 (alternatively sys-gui).

Sks · January 17, 2025, 3:08pm

How do i do that?

barto · January 17, 2025, 3:13pm

You open a dom0 terminal! Easiest way to achieve this is to right-click on the Desktop and, from the menu that pops-up, select Open Terminal Here.

Sks · January 17, 2025, 4:04pm

Kinda of solved Thanks