After a fresh install of Crunchbang Linux 11 on an Intel 486 powered machine I struggle with setting the display brightness which blasts at 100% … this is really, physically painful. My efforts to set up the
xorg.config file usually results in booting in the most basic graphics mode. After all I've messed up the whole graphics department bad enough to the point of having to reinstall the whole thing.
01:00.0 VGA compatible controller: NVIDIA Corporation NV17GL [Quadro NVS] (rev a3) (prog-if 00 [VGA controller]) Subsystem: NVIDIA Corporation Device 015d Flags: bus master, 66MHz, medium devsel, latency 64, IRQ 18 Memory at fd000000 (32-bit, non-prefetchable) [size=16M] Memory at f8000000 (32-bit, prefetchable) [size=64M] Memory at fc200000 (32-bit, prefetchable) [size=512K] [virtual] Expansion ROM at fc000000 [disabled] [size=128K] Capabilities:  Power Management version 2 Capabilities:  AGP version 2.0 Kernel driver in use: nouveau
3.2.0-4-486 #1 Debian 3.2.54-2 i686 GNU/Linux
As I work on a really old keyboard (PS/2 Plug) I don't have any Fn keys or such which usually work perfectly fine. 100% brightness all the time cause headache, pain in the eyes an no more ability to concentrate anymore.
Any idea or hint where did I took the turn into this dead end?
As Karol Babioch pointed out, brightness is controlled via
/sys/class/backlight/ – which is empty here. Any ideas?