Suspend: Brightness permenantly low after resuming Ubuntu

[Nibinaear]

Binary package hint: gnome-power-manager

I use the suspend feature on the computer. After resuming Ubuntu my brightness is very low, say 50%. If I try to adjust the brightness using the controls it shows as full but cannot be decreased or increased. After a system restart the computer returns to normal.

I'm on a Sony Vaio VGN-NW11s using Ubuntu 10.04 Lucid. I'm using Gnome 2.30.0. This is probably already in the report.

I didn't know which package was causing the problem. According to the docs it is most likely the kernel but I don't know how to submit info about that, so chose gnome-power-manager.

This is my first bug report. Please tell me if there's any other info you need, I am a new Ubuntu user.

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: gnome-power-manager 2.30.0-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.32-22.36-generic 2.6.32.11+drm33.2
Uname: Linux 2.6.32-22-generic i686
Architecture: i386
Date: Mon Jun 7 13:04:29 2010
GnomeSessionIdleInhibited: No
GnomeSessionInhibitors: None
GnomeSessionSuspendInhibited: No
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
MachineType: Sony Corporation VGN-NW11S_S
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-22-generic root=/dev/sda1 loop=/hostname/disks/root.disk ro quiet splash
ProcEnviron:
 LANG=en_GB.utf8
 SHELL=/bin/bash
SourcePackage: gnome-power-manager
dmi.bios.date: 05/22/2009
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: R0170Y4
dmi.board.asset.tag: N/A
dmi.board.name: VAIO
dmi.board.vendor: Sony Corporation
dmi.board.version: N/A
dmi.chassis.asset.tag: N/A
dmi.chassis.type: 10
dmi.chassis.vendor: Sony Corporation
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrR0170Y4:bd05/22/2009:svnSonyCorporation:pnVGN-NW11S_S:pvrC601TF78:rvnSonyCorporation:rnVAIO:rvrN/A:cvnSonyCorporation:ct10:cvrN/A:
dmi.product.name: VGN-NW11S_S
dmi.product.version: C601TF78
dmi.sys.vendor: Sony Corporation

[thewk (theewk)]

I can confirm this brightness -issue up to that point that the brightness is lower when waking from suspend, not always but usually when doing first suspend - wake sequence after the machine has been booted to Ubuntu.

I have Acer Travelmate 5520, graphics card is Radeon X1250 and OS is Ubuntu 10.04.

[Pedro Villavicencio (pedro)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. A new version of Gnome Power Manager is available on Maverick and we are wondering if this bug is still an issue for you with that version? Could you please test and comment back? Thanks in advance.

[Nibinaear (nibinaear)]

  Hi, thanks for responding. Unfortunately I've recently formatted my
Ubuntu machine with no plans to reinstall at the moment. Will respond to
this bug report if I encounter the problem again in the future.

Thanks,
Daniel

On 15/10/2010 19:19, Pedro Villavicencio wrote:
> Thank you for taking the time to report this bug and helping to make
> Ubuntu better. A new version of Gnome Power Manager is available on
> Maverick and we are wondering if this bug is still an issue for you with
> that version? Could you please test and comment back? Thanks in advance.
>
> ** Changed in: gnome-power-manager (Ubuntu)
> Status: New => Incomplete
>

[QianHao (yorua007)]

I have this problem too.Also the the guest XP in virtualbox becomes vey slowly.My OS is lucid,ubuntu10.04

[QianHao (yorua007)]

This may help:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/613638

[Nibinaear (nibinaear)]

Seems like there is a solution at the bottom there, like I said, can't test myself:

DieterVDW wrote on 2010-08-04:
After some more research, found the following webpage:
http://www.thinkwiki.org/wiki/Category:W510

Solution:
Add following line to NVidia Device section in xorg.conf:
Option "RegistryDwords" "EnableBrightnessControl=1"

[Launchpad Janitor (janitor)]

[Expired for gnome-power-manager (Ubuntu) because there has been no activity for 60 days.]