How to adjust brightness on display

[satimis]

Hi all,

Ubuntu 22.04
Display - Dell 4K 32" display

How to adjust the brightness of the disaplay ?

1) The control on the display seems not working
2) I have "brightness-controller" installed. Also I can't make it to work.

Please help. Thanks in advance.

Regards

[Autodave]

Have you tried resetting the monitor to factory specs and then try adjusting the brightness? What model is the display?

[iamjiwjr]

There's a Gnome Extension called soft brightness plus. I've never used it, but it might help.

[him610]

There a couple of ways from a terminal that work for me...

xgamma -gamma 0.8

or

xrandr --output (screen*) --brightness 0.8

*Run xrandr by itself to determine which screen to use