Backlight: Difference between revisions
imported>Graham33 Add info on OLED screens (which don't technically have a backlight) |
imported>Con-f-use sys/class brightness |
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You can use it by simply installing the package. Since <code>brightnessctl</code> supports the systemd-logind API it should work out of the box (i.e. without installing any udev rules or using a setuid wrapper). | You can use it by simply installing the package. Since <code>brightnessctl</code> supports the systemd-logind API it should work out of the box (i.e. without installing any udev rules or using a setuid wrapper). | ||
== <code>/sys/class/backlight/...</code> == | |||
The <code>/sys/class/backlight/*/brightness</code> files are a built-in way to set brightness. Use them e.g. with: | |||
<syntaxhighlight lang=bash> | |||
sudo tee /sys/class/backlight/intel_backlight/brightness <<< 300 | |||
</syntaxhighlight> | |||
to set the brightness to <code>300</code>, where the maximum is stored in <code>brightness_max</code>. You can set file permissions e.g. with a udev rule, if you don't want to use sudo. | |||
== Tips == | == Tips == | ||