gnome-power-manager fails to control LCD brightness, while FN keys work normally (Toshiba satellite A210P)
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
gnome-power-manager (Ubuntu) |
Expired
|
Undecided
|
Unassigned |
Bug Description
Binary package hint: gnome-power-manager
Toshiba satellite A210P with ATI graphic card, running Ubuntu 10.04 LTS kernel 2.6.31-10-rt (kernel 2.6.32 also affected).
issue in gnome-power-manager 2.30.0-0ubuntu1
After installing omnibook module (for bluetooth) and proprietary ATI driver gnome-power-manager cannot read and change LCD brightness. The applet slider is stuck at the upper position. Brightness can only be changed by pressing Fn keys. In karmic, everything worked fine.
The keys can be disabled by modprobe -r video. However, the situation with g-p-m remains.
Blacklisting omnibook did not solve the issue.
cat /proc/acpi/
returns:
levels: 0 10 20 30 40 50 60 70
current: 70
Trying to echo anything to /proc/acpi/
Dmesg after pressing Fn keys returns:
[ 1802.062534] [fglrx:
[ 1813.759336] [fglrx:
[ 1813.773890] [fglrx:
[ 1813.783447] [fglrx:
[ 1814.933052] __ratelimit: 14 callbacks suppressed
[ 1814.933063] ACPI: EC: missing confirmations, switch off interrupt mode.
[ 1814.939167] [fglrx:
[ 1814.956165] [fglrx:
Adding GRUB_CMDLINE_
ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: gnome-power-manager 2.30.0-0ubuntu1
ProcVersionSign
Uname: Linux 2.6.31-10-rt i686
NonfreeKernelMo
Architecture: i386
Date: Tue Jun 8 23:07:56 2010
GnomeSessionIdl
GnomeSessionInh
GnomeSessionSus
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
MachineType: TOSHIBA Satellite A210
PccardctlIdent:
Socket 0:
no product info available
PccardctlStatus:
Socket 0:
no card
ProcCmdLine: BOOT_IMAGE=
ProcEnviron:
LANG=ru_RU.UTF-8
SHELL=/bin/bash
SourcePackage: gnome-power-manager
dmi.bios.date: 06/10/2008
dmi.bios.vendor: TOSHIBA
dmi.bios.version: V2.00
dmi.board.name: IALAA
dmi.board.vendor: TOSHIBA
dmi.board.version: 1.00
dmi.chassis.
dmi.chassis.type: 10
dmi.chassis.vendor: TOSHIBA
dmi.chassis.
dmi.modalias: dmi:bvnTOSHIBA:
dmi.product.name: Satellite A210
dmi.product.
dmi.sys.vendor: TOSHIBA
Update. acpi/video/ VGA/LCD/ brightness
sudo su
echo -n VALUE >/proc/
does work
sudo echo -n VALUE >/proc/ acpi/video/ VGA/LCD/ brightness
dors not
no luck with g-p-m anyway.