Is there a general way to configure the display brightness on IGEL OS?


Is there a general way to configure the display brightness?

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I see the option on the taskbar menu when it’s a laptop (or occasionally otherwise). But I have some all-in-one PCs which don’t have this. They don’t have hardware brightness buttons, but they don’t have any battery devices that would cause the charging/brightness menu to appear.


as far as I remember this feature isn‘t available by default on non-battery driven devices.

Two ideas I would share (but not tested since power management in my virtual machines is limited), both needs to be tested in command line as user (Accessories=>Terminal=>Add a session by +=>Save)

xrandr is usually the way to go. something like this may work: xrandr —output $(xrandr | grep „ connected“ | cut -f1 -d „ „) —brightness 0.8

0 is lower brightness 1 is brightest

if it doesn‘t work replace $(xrandr | grep „ connected“ | cut -f1 -d „ „) by the right output manually. check with xrandr command which output is connected

second one the command igel_gamma

Syntax is shown by adding -help

I would try igel_gamma -gamma 8

I wished to have an easier way and hope that someone will correct me…

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