Backlight Control Fedora 10 vs Fedora 12

[nujinini]

Hello,

I execute

xrandr --output LVDS --set BACKLIGHT_CONTROL native

on Fedora 10, my screen blinks and I am able to reduce screen brighness using my keys.

However in Fedora 12, this does not work. I can't understand why since I am still using the same flavor but only an upgrade. (Fedora family).

I obviously do not know what I may be talking about but, would it be possible to recompile my fedora 12 kernel with some of the Fedora 10 kernel in order to get that which is needed to have me reduce backlight using keyboards again?

Or perhaps there can be an easier way. Here is the error report it is giving me:

[jun@localhost ~]$ xrandr --output LVDS --set BACKLIGHT_CONTROL native
X Error of failed request:  BadRROutput (invalid Output parameter)
  Major opcode of failed request:  148 (RANDR)
  Minor opcode of failed request:  15 (RRGetOutputProperty)
  Serial number of failed request:  26
  Current serial number in output stream:  26
[jun@localhost ~]$ uname -r
2.6.32.12-115.fc12.i686
[jun@localhost ~]$

Hope somebody can help me understand. Thank you!

[nujinini]

Hi Guys,

Just wanted to share. After so many months, I am able to find a way to relieve my eyes of the brightness of my laptop monitor.

Not all distros respond to

xrandr --output LVDS --set BACKLIGHT_CONTROL native

to make me adjust brightness I use another CLI command instead. And it works. At least for my laptop.

jun@jun-laptop:~$ xgamma -gamma .2

Numbers are from .1 to 1.4

Thanks!