Hi Steffen, >>>> and take a look if /sys/class/backlight/acpi_video0/ is present: > On an IBM T61 i have acpi_video1 too. Video0 represents the vga/dvi output > where video1 represents the LCD. > Also have a look on max_brightness on this dirs for the maximum value. No, I only have video0.
> As workarround you could switch to a console (Ctrl+Alt+F1) and try to dim > with your fn+ keys. Yes, that's is what I'm currently doing. > Be careful to touch the right (video-)output. In /proc/acpi/video i have two > devices: VID and VID1. VID1 references to my LCD. Yes, I looked into that folder, but I had no results so far :( I'm still trying ... Thanks for your mail. Best regards, Damian. > Steffen > > > >
