Ubuntu 12.04 backlight problem of msi notebook with nvidia 8400m graphic card

Bug #990932 reported by RealBezo
10
This bug affects 2 people
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" "EnableBrightnessControl=1"
 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/controlC0: real 2481 F.... xfce4-volumed
                      real 2483 F.... pulseaudio
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xf9ff8000 irq 46'
   Mixer name : 'Realtek ALC888'
   Components : 'HDA:10ec0888,14623fe9,00100001 HDA:11c11040,11c10001,00100200'
   Controls : 39
   Simple ctrls : 21
DistroRelease: Ubuntu 12.04
HibernationDevice: RESUME=UUID=2852c7f5-47bc-4b80-a615-71b85f1a032f
InstallationMedia: Xubuntu 12.04 LTS "Precise Pangolin" - Release i386 (20120423)
MachineType: Micro-Star International MSI Notebook EX600
NonfreeKernelModules: nvidia
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=/boot/vmlinuz-3.2.0-23-generic root=UUID=4f91ecc8-63d9-4ec3-9e2a-b9a7a4e4f118 ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.2.0-23.36-generic 3.2.14
RelatedPackageVersions:
 linux-restricted-modules-3.2.0-23-generic N/A
 linux-backports-modules-3.2.0-23-generic N/A
 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.asset.tag: To Be Filled By O.E.M.
dmi.board.name: MS-1636X
dmi.board.vendor: MICRO-STAR INT'L CO.,LTD
dmi.board.version: Ver 1.000
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 10
dmi.chassis.vendor: Micro-Star International
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrA1636IMSV1.2C:bd08/06/2008:svnMicro-StarInternational:pnMSINotebookEX600:pvrVer1.000:rvnMICRO-STARINT'LCO.,LTD:rnMS-1636X:rvrVer1.000:cvnMicro-StarInternational:ct10:cvrToBeFilledByO.E.M.:
dmi.product.name: MSI Notebook EX600
dmi.product.version: Ver 1.000
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/controlC0: real 2481 F.... xfce4-volumed
                      real 2483 F.... pulseaudio
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xf9ff8000 irq 46'
   Mixer name : 'Realtek ALC888'
   Components : 'HDA:10ec0888,14623fe9,00100001 HDA:11c11040,11c10001,00100200'
   Controls : 39
   Simple ctrls : 21
DistroRelease: Ubuntu 12.04
HibernationDevice: RESUME=UUID=2852c7f5-47bc-4b80-a615-71b85f1a032f
InstallationMedia: Xubuntu 12.04 LTS "Precise Pangolin" - Release i386 (20120423)
MachineType: Micro-Star International MSI Notebook EX600
NonfreeKernelModules: nvidia
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=/boot/vmlinuz-3.2.0-23-generic root=UUID=4f91ecc8-63d9-4ec3-9e2a-b9a7a4e4f118 ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.2.0-23.36-generic 3.2.14
RelatedPackageVersions:
 linux-restricted-modules-3.2.0-23-generic N/A
 linux-backports-modules-3.2.0-23-generic N/A
 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.asset.tag: To Be Filled By O.E.M.
dmi.board.name: MS-1636X
dmi.board.vendor: MICRO-STAR INT'L CO.,LTD
dmi.board.version: Ver 1.000
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 10
dmi.chassis.vendor: Micro-Star International
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrA1636IMSV1.2C:bd08/06/2008:svnMicro-StarInternational:pnMSINotebookEX600:pvrVer1.000:rvnMICRO-STARINT'LCO.,LTD:rnMS-1636X:rvrVer1.000:cvnMicro-StarInternational:ct10:cvrToBeFilledByO.E.M.:
dmi.product.name: MSI Notebook EX600
dmi.product.version: Ver 1.000
dmi.sys.vendor: Micro-Star International

Revision history for this message
Brad Figg (brad-figg) wrote : Missing required logs.

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.

Changed in linux (Ubuntu):
status: New → Incomplete
Revision history for this message
RealBezo (realbezo) wrote : AcpiTables.txt

apport information

tags: added: apport-collected precise
description: updated
Revision history for this message
RealBezo (realbezo) wrote : AlsaDevices.txt

apport information

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RealBezo (realbezo) wrote : AplayDevices.txt

apport information

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RealBezo (realbezo) wrote : ArecordDevices.txt

apport information

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RealBezo (realbezo) wrote : BootDmesg.txt

apport information

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RealBezo (realbezo) wrote : CRDA.txt

apport information

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RealBezo (realbezo) wrote : Card0.Amixer.values.txt

apport information

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RealBezo (realbezo) wrote : Card0.Codecs.codec.0.txt

apport information

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RealBezo (realbezo) wrote : Card0.Codecs.codec.1.txt

apport information

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RealBezo (realbezo) wrote : CurrentDmesg.txt

apport information

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RealBezo (realbezo) wrote : IwConfig.txt

apport information

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RealBezo (realbezo) wrote : Lspci.txt

apport information

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RealBezo (realbezo) wrote : Lsusb.txt

apport information

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RealBezo (realbezo) wrote : PciMultimedia.txt

apport information

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RealBezo (realbezo) wrote : ProcCpuinfo.txt

apport information

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RealBezo (realbezo) wrote : ProcInterrupts.txt

apport information

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RealBezo (realbezo) wrote : ProcModules.txt

apport information

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RealBezo (realbezo) wrote : PulseList.txt

apport information

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RealBezo (realbezo) wrote : UdevDb.txt

apport information

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RealBezo (realbezo) wrote : UdevLog.txt

apport information

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RealBezo (realbezo) wrote : WifiSyslog.txt

apport information

description: updated
Revision history for this message
RealBezo (realbezo) wrote : AcpiTables.txt

apport information

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RealBezo (realbezo) wrote : AlsaDevices.txt

apport information

Revision history for this message
RealBezo (realbezo) wrote : AplayDevices.txt

apport information

Revision history for this message
RealBezo (realbezo) wrote : ArecordDevices.txt

apport information

Revision history for this message
RealBezo (realbezo) wrote : BootDmesg.txt

apport information

Revision history for this message
RealBezo (realbezo) wrote : CRDA.txt

apport information

Revision history for this message
RealBezo (realbezo) wrote : Card0.Amixer.values.txt

apport information

Revision history for this message
RealBezo (realbezo) wrote : Card0.Codecs.codec.0.txt

apport information

Revision history for this message
RealBezo (realbezo) wrote : Card0.Codecs.codec.1.txt

apport information

Revision history for this message
RealBezo (realbezo) wrote : CurrentDmesg.txt

apport information

Revision history for this message
RealBezo (realbezo) wrote : IwConfig.txt

apport information

Revision history for this message
RealBezo (realbezo) wrote : Lspci.txt

apport information

Revision history for this message
RealBezo (realbezo) wrote : Lsusb.txt

apport information

Revision history for this message
RealBezo (realbezo) wrote : PciMultimedia.txt

apport information

Revision history for this message
RealBezo (realbezo) wrote : ProcCpuinfo.txt

apport information

Revision history for this message
RealBezo (realbezo) wrote : ProcInterrupts.txt

apport information

Revision history for this message
RealBezo (realbezo) wrote : ProcModules.txt

apport information

Revision history for this message
RealBezo (realbezo) wrote : PulseList.txt

apport information

Revision history for this message
RealBezo (realbezo) wrote : UdevDb.txt

apport information

Revision history for this message
RealBezo (realbezo) wrote : UdevLog.txt

apport information

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RealBezo (realbezo) wrote : WifiSyslog.txt

apport information

description: updated
Changed in linux (Ubuntu):
status: Incomplete → Confirmed
RealBezo (realbezo)
summary: - backlight problem of msi notebook with nvidia 8400m graphic card
+ Ubuntu 12.04 backlight problem of msi notebook with nvidia 8400m graphic
+ card
Revision history for this message
Joseph Salisbury (jsalisbury) wrote :

Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v3.4kernel[1] (Not a kernel in the daily directory). Once you've tested the upstream kernel, please remove the 'needs-upstream-testing' tag(Only that one tag, please leave the other tags). This can be done by clicking on the yellow pencil icon next to the tag located at the bottom of the bug description and deleting the 'needs-upstream-testing' text.

If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'.
Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".

Thanks in advance.

http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.4-rc4-precise/

Changed in linux (Ubuntu):
importance: Undecided → Medium
status: Confirmed → Incomplete
tags: added: needs-upstream-testing
RealBezo (realbezo)
tags: removed: needs-upstream-testing
tags: added: kernel-bug-exists-upstream
Changed in linux (Ubuntu):
status: Incomplete → Confirmed
Revision history for this message
Joseph Salisbury (jsalisbury) wrote :

This issue appears to be an upstream bug, since you tested the latest upstream kernel. Would it be possible for you to open an upstream bug report at bugzilla.kernel.org [1]? That will allow the upstream Developers to examine the issue, and may provide a quicker resolution to the bug.

If you are comfortable with opening a bug upstream, It would be great if you can report back the upstream bug number in this bug report. That will allow us to link this bug to the upstream report.

[1] https://wiki.ubuntu.com/Bugs/Upstream/kernel

Changed in linux (Ubuntu):
status: Confirmed → Triaged
Revision history for this message
RealBezo (realbezo) wrote :

Hello again, i don't know if it is related to kernel. What i know is that the backlight keys function normally on login page of xubuntu but after i login it seems like some module or driver that i cannot determine is taking control of it and cannot set it step by step. It just goes to maximum or minimum, there is no way to change it step by step. Which module or driver can cause the problem, i think this is the crucial question.

Revision history for this message
RealBezo (realbezo) wrote :

Hello, i could solve the problem on my own through trial and error. I just started to remove the packages which are related to brightness and completely removed "acpid", "acpi-support", "laptop-mode-tools", "xfce4-power-manager" and "xfce4-power-manager-plugins" packages, then installed back all of them step by step, between steps i rebooted my computer and checked the status. At the end i determined the "xfce4-power-manager" and "xfce4-power-manager-plugins" packages are responsible for this conflict about setting the brightness. I think the same problem does exist for gnome-power-manager too, because all of ubuntu based distros have same problem for my computer...

Changed in linux (Ubuntu):
status: Triaged → Fix Committed
RealBezo (realbezo)
Changed in linux (Ubuntu):
status: Fix Committed → In Progress
status: In Progress → Confirmed
Changed in linux (Ubuntu):
status: Confirmed → Incomplete
Revision history for this message
Launchpad Janitor (janitor) wrote :

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in xfce4-power-manager (Ubuntu):
status: New → Confirmed
Revision history for this message
Thaddaeus Tintenfisch (thad-fisch-deactivatedaccount) wrote :

RealBezo, any news on this issue? Changing the hidden settings "change-brightness-on-key-events" to false may fix the misbehavior.

http://docs.xfce.org/xfce/xfce4-power-manager/preferences#hidden_options

Changed in xfce4-power-manager (Ubuntu):
status: Confirmed → Incomplete
Revision history for this message
RealBezo (realbezo) wrote :

No, i stopped using that pc (actually, i disassembled some parts of it, it doesn't work anymore),

Revision history for this message
Thaddaeus Tintenfisch (thad-fisch-deactivatedaccount) wrote :

Thanks for your quick reply. Let me close this report then.

If anyone else experiences this or a similar bug, please feel free to re-open this report or file a new one.

Changed in linux (Ubuntu):
status: Incomplete → Invalid
Changed in xfce4-power-manager (Ubuntu):
status: Incomplete → Invalid
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