Created attachment 25699 [details]
bugs detailed info

00oo00  wrote 16 hours ago:  	  #2

Hello, I have a problem with my Samsung notebook.
My Function Keys (Fn) that manage the brightness level are bios-controlled, because they work before Linux boot (in grub and in bios for example).
The problem is that they don't work after the boot. The only way to change the screen brightness is doing echo n>/proc/acpi/video/GFX0/DD03/brightness (where n is the desired brightness level).
I can't assign any function to the brightness fn keys (I think that's because they're bios controlled).

I tried 4 keystrokes doesn`t return keycodes. They`re FN+F7 FN+F8 FN+F9 FN+F10
I did dmesg|tail -5 command and it returns this below.

[ 80.440431] ata4.00: status: { DRDY ERR }
[ 133.093263] ACPI: Please implement acpi_video_bus_ROM_seq_show
[ 133.250579] ACPI: Please implement acpi_video_bus_ROM_seq_show
[ 134.123082] ACPI: Please implement acpi_video_bus_ROM_seq_show
[ 1333.281087] CE: hpet increasing min_delta_ns to 15000 nsec

when cat '/proc/acpi/video/GFX0/DD03/brightness it returns some values.

levels: 13 25 38 50 63 75 88 100
current: 63

Brightness control not working with FN +F7(BRTN UP) FN+F8(BRTN DOWN). Tried different versions not working as well. I think this is a bug. And run into tty1 tried to get the two keycode but return nothing.

ProblemType: Bug
Architecture: i386
Date: Wed Mar 24 13:11:16 2010
DistroRelease: Ubuntu 9.10
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release i386 (20091028.5)
NonfreeKernelModules: wl
Package: gnome-power-manager 2.28.1-0ubuntu1.3
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-20.58-generic
SourcePackage: gnome-power-manager
Uname: Linux 2.6.31-20-generic i686
XsessionErrors:
 (gnome-settings-daemon:1715): GLib-CRITICAL **: g_propagate_error: assertion `src != NULL' failed
 (gnome-settings-daemon:1715): GLib-CRITICAL **: g_propagate_error: assertion `src != NULL' failed
 (nautilus:1822): Eel-CRITICAL **: eel_preferences_get_boolean: assertion `preferences_is_initialized ()' failed
 (polkit-gnome-authentication-agent-1:1854): GLib-CRITICAL **: g_once_init_leave: assertion `initialization_value != 0' failed
 (firefox:1959): GLib-WARNING **: g_set_prgname() called multiple times