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URL:
https://askubuntu.com/q/1002694
Title:
Adjusting the display backlight on HP ZBook 17 G4 with Nvidia Graphics
ID:
/2018/02/03/Adjusting-the-display-backlight-on-HP-ZBook-17-G4-with-Nvidia-Graphics
Created:
February 3, 2018
Edited: June 12, 2020
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April 8, 2024
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Adjusting brightness with software controls
When you lack hardware controls to adjust brightness the only option is via software.
Find your monitor name using xrandr
Run this command to find monitors connected to xrandr:
$ xrandr | grep connected | grep -v dis
eDP-1 connected primary 1920x1080+0+1080 (normal left inverted right x axis y axis) 382mm x 215mm
DP-1 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 1107mm x 623mm
For me it is eDP-1 but on your system it is DP-3
Set –brightness in xrandr
You can set brightness to screen off 0 to full bright 1.
You can set it above full bright ie 1.5 but your colors will become overly saturated.
A good starting point for a screen that is too bright (hard on your poor eyes) is .5
xrandr --output DP-3 --brightness .5
From there you can adjust accordingly.