sony-vaio-z-series team mailing list archive

[vick <weasalandme@xxxxxxxxx>]

> For instance if I do:

> echo 2 > 
> /sys/devices/pci0000:00/0000:00:02.0/backlight/acpi_video0/brightness
> the brightness doesn't decrease.

That file is only writable by root on my system so try sudo echo 2 > ...
Also I don't have any acpi scripts and KDE brightness adjustment works just fine for me. I'm using np8 version of the module though.