Ubuntu 12.04 backlight problem of msi notebook with nvidia 8400m graphic card
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Invalid
|
Medium
|
Unassigned | ||
xfce4-power-manager (Ubuntu) |
Invalid
|
Undecided
|
Unassigned |
Bug Description
Hello, i have a msi ex600 laptop and just installed xubuntu 12.04 precise pangolin. But i have a problem with my backlight. At first i could not set properly my backlight via function keys, when i tried to set it, it was going to the maximum brightness always , but later i googled the problem and added to /etc/X11/xorg.conf file
Section "Device"
Identifier "Default Device"
Option "RegistryDwords" "EnableBrightne
Option "NoLogo" "True"
EndSection
this section.
Now i can properly set my backlight on login screen, it works as normal but when i login to my account, i cannot change my backlight still as usual. if i try to increase one step it goes to maximum, if i try to decrease it goes to minimum, there is no option to change it step by step...
i had a similar problem with xubuntu and ubuntu 11.10 , i solved it but i don't remember how i managed it.
Thanks in advance...
---
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu5
Architecture: i386
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xf9ff8000 irq 46'
Mixer name : 'Realtek ALC888'
Components : 'HDA:10ec0888,
Controls : 39
Simple ctrls : 21
DistroRelease: Ubuntu 12.04
HibernationDevice: RESUME=
InstallationMedia: Xubuntu 12.04 LTS "Precise Pangolin" - Release i386 (20120423)
MachineType: Micro-Star International MSI Notebook EX600
NonfreeKernelMo
Package: linux (not installed)
PccardctlIdent:
Socket 0:
no product info available
PccardctlStatus:
Socket 0:
no card
ProcEnviron:
LANGUAGE=en_US:en
TERM=xterm
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 VESA VGA
ProcKernelCmdLine: BOOT_IMAGE=
ProcVersionSign
RelatedPackageV
linux-
linux-
linux-firmware 1.79
RfKill:
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
SourcePackage: linux
Tags: precise precise
Uname: Linux 3.2.0-23-generic i686
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 08/06/2008
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: A1636IMS V1.2C
dmi.board.
dmi.board.name: MS-1636X
dmi.board.vendor: MICRO-STAR INT'L CO.,LTD
dmi.board.version: Ver 1.000
dmi.chassis.
dmi.chassis.type: 10
dmi.chassis.vendor: Micro-Star International
dmi.chassis.
dmi.modalias: dmi:bvnAmerican
dmi.product.name: MSI Notebook EX600
dmi.product.
dmi.sys.vendor: Micro-Star International
---
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu5
Architecture: i386
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xf9ff8000 irq 46'
Mixer name : 'Realtek ALC888'
Components : 'HDA:10ec0888,
Controls : 39
Simple ctrls : 21
DistroRelease: Ubuntu 12.04
HibernationDevice: RESUME=
InstallationMedia: Xubuntu 12.04 LTS "Precise Pangolin" - Release i386 (20120423)
MachineType: Micro-Star International MSI Notebook EX600
NonfreeKernelMo
Package: linux (not installed)
PccardctlIdent:
Socket 0:
no product info available
PccardctlStatus:
Socket 0:
no card
ProcEnviron:
LANGUAGE=en_US:en
TERM=xterm
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 VESA VGA
ProcKernelCmdLine: BOOT_IMAGE=
ProcVersionSign
RelatedPackageV
linux-
linux-
linux-firmware 1.79
RfKill:
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
SourcePackage: linux
Tags: precise precise
Uname: Linux 3.2.0-23-generic i686
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 08/06/2008
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: A1636IMS V1.2C
dmi.board.
dmi.board.name: MS-1636X
dmi.board.vendor: MICRO-STAR INT'L CO.,LTD
dmi.board.version: Ver 1.000
dmi.chassis.
dmi.chassis.type: 10
dmi.chassis.vendor: Micro-Star International
dmi.chassis.
dmi.modalias: dmi:bvnAmerican
dmi.product.name: MSI Notebook EX600
dmi.product.
dmi.sys.vendor: Micro-Star International
summary: |
- backlight problem of msi notebook with nvidia 8400m graphic card + Ubuntu 12.04 backlight problem of msi notebook with nvidia 8400m graphic + card |
tags: | removed: needs-upstream-testing |
tags: | added: kernel-bug-exists-upstream |
Changed in linux (Ubuntu): | |
status: | Incomplete → Confirmed |
Changed in linux (Ubuntu): | |
status: | Fix Committed → In Progress |
status: | In Progress → Confirmed |
Changed in linux (Ubuntu): | |
status: | Confirmed → Incomplete |
This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:
apport-collect 990932
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the Ubuntu Kernel Team.