I own a Samsung R510 ASS5 (nVidia GeForce 9200M GS) running Ubuntu Maverick 10.10.
I added your repository and installed these packages:
- nvidia-bl-dkms (the module is not loaded at boot)
- udev (and modified 95-keyboard-force-release.rules in order to add my model)
and their dependencies of course...
This is my xorg.conf Device Section:
Identifier "Default Device"
Option "NoLogo" "True"
Option "RegistryDwords" "EnableBrightnessControl=1"
With these settings I've got all the buttons working.
Brightness has 7 levels: 0 through 7.
Now, the problem is that when I lower the brightness to "1" level the screen turns totally off (but I can still see things if I point some light on the screen) and when I raise the brightness the screen remains off. Fortunately I've found that pressing the Fn+F5 button (on/off lcd) two times the screen turns again on.
The same happens if I execute:
# echo 1 > /sys/class/backlight/acpi_video0/brightness Is there any way to eliminate the "zero" and "one" brightness levels in order to avoid such problem? Is there any way to add some other brightness levels for a smoother dim?
# echo 0 > /sys/class/backlight/acpi_video0/brightness
# echo 1 > /sys/class/backlight/samsung/brightness
# echo 0 > /sys/class/backlight/samsung/brightness
Let's say 15 levels...