Score:0

Cannot change HDMI brightness on ubuntu 22.04

th flag
gdb

I cannot change by any mean the brightness of a monitor connected through hdmi to an AMD rx 550 videocard on ubuntu 22.04. I used to be able before changing a now dead geforce, I did a fresh install after the new videocard. Its the only active monitor. I tried this command "xrandr --output XWAYLAND0 --brightness 0.1" with no luck. more info: xrandr -q | grep " connected"

XWAYLAND0 connected primary 1600x900+0+0 (normal left inverted right x axis y axis) 530mm x 300mm

thanks in advance.

Score:0
th flag
gdb

I found a posible answer, just install gddccontrol by running

sudo apt install ddccontrol
sudo apt install gddccontrol

and you'll be able to control the brightness of your monitor. Hope it's useful for someone.

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