2.0 backlight is an other option to adjust the brigthness of the laptop only:
Code: Select all
Section "Device" Identifier "card0" Driver "intel" Option "Backlight" "intel_backlight" BusID "PCI:0:2:0" EndSection
https://wiki.archlinux.org/index.php/ba ... ne_options
I would like to have the same control on my benq external monitor.
And as I write this post down just realised that there are a full row of buttons on that display.