Comment 69 for bug 573984

Hello Christopher,

This is no longer an issue for me though it may remain an issue for others
on the email list.

The combination of Kamal's kernel changes plus boot parameters plus making
sure gnome services were running (I run xfce) fixed the problem for me.

Thank you very much for looking into this.

-Tony

On Sun, Mar 25, 2012 at 9:40 PM, Christopher M. Penalver <
<email address hidden>> wrote:

> Tony Diep, thank you for reporting this and helping make Ubuntu better.
> This bug was reported a while ago and there hasn't been any activity in it
> recently. We were wondering if this is still an issue? Can you try with the
> latest development release of Ubuntu? ISO CD images are available from
> http://cdimage.ubuntu.com/releases/ .
>
> If it remains an issue, could you run the following command from a
> Terminal (Applications->Accessories->Terminal). It will automatically
> gather and attach updated debug information to this report.
>
> apport-collect -p linux <replace-with-bug-number>
>
> Also, if you could test the latest upstream kernel available that would be
> great. It will allow additional upstream developers to examine the issue.
> Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Once you've
> tested the upstream kernel, please remove the 'needs-upstream-testing' tag.
> 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. Please let us know your results.
>
> Thanks in advance.
>
> ** Changed in: linux (Ubuntu)
> Status: Confirmed => Incomplete
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/573984
>
> Title:
> Screen brightness can not be adjusted in Lucid with Intel Arrandale
> graphics
>
> Status in “linux” package in Ubuntu:
> Incomplete
> Status in openSUSE:
> Unknown
>
> Bug description:
> PROBLEM
> Hot keys for adjusting screen brightness do not work in Karmic or Lucid
> for Gateway NV59 laptop with Arrandale Graphics.
> Under Karmic, workaround was to adjust screen brightness while still in
> BIOS post.
> Karmic would boot with the selected screen brightness
>
> Under Lucid, screen brightness goes to 100% when booting, ignoring
> brightness set during boot.
> Hot keys for adjusting brightness do not work.
>
> RESULTS
> Tried the following:
>
> * Setting memory directly under /proc
> Results: memory for VGA brightness would change but display wouldn't
> actually change
>
> CHANGING BOOT PARAMETERS:
>
> # GRUB_CMDLINE_LINUX_DEFAULT="quiet splash nolapic acpi_backlight=vendor"
> # above line doesn't solve problem
> # GRUB_CMDLINE_LINUX="acpi=off"
> # above line allows screen brightness but hyperthreading is off
> GRUB_CMDLINE_LINUX="acpi=ht"
> # above line allows screen brightness adjustment at cost of power, core
> temp?
> # GRUB_CMDLINE_LINUX="acpi_generic_hotkey"
> # above line doesn't solve screen brightness problem
> # GRUB_CMDLINE_LINUX="acpi=strict"
> # above line does not solve screen brightness problem
> # GRUB_CMDLINE_LINUX="acpi_osi=Linux"
> # above line does not solve screen brightness problem
> # GRUB_CMDLINE_LINUX="acpi=noirq"
> # above line doesn't solve
> # GRUB_CMDLINE_LINUX="acpi=noacpi"
> # above line does not allow screen brightness adjustment
> # GRUB_CMDLINE_LINUX="acpi_backlight=vendor"
> # above line does not work
> # GRUB_CMDLINE_LINUX="i915.modeset=0"
> # above line make linux unbootable. Have to book off USB/CD and manually
> edit grub.conf
>
> BEST WORKAROUND
> GRUB_CMDLINE_LINUX="acpi=ht"
> # above line allows screen brightness adjustment at cost of power, core
> temp?
>
> Linux tdlap6 2.6.32-21-generic #32-Ubuntu SMP Fri Apr 16 08:09:38 UTC
> 2010 x86_64 GNU/Linux
>
> ProblemType: Bug
> DistroRelease: Ubuntu 10.04
> Package: linux-image-2.6.32-21-generic 2.6.32-21.32
> Regression: Yes
> Reproducible: Yes
> ProcVersionSignature: Ubuntu 2.6.32-21.32-generic 2.6.32.11+drm33.2
> Uname: Linux 2.6.32-21-generic x86_64
> AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
> Architecture: amd64
> ArecordDevices:
> **** List of CAPTURE Hardware Devices ****
> card 0: Intel [HDA Intel], device 0: ALC272 Analog [ALC272 Analog]
> Subdevices: 1/1
> Subdevice #0: subdevice #0
> AudioDevicesInUse:
> USER PID ACCESS COMMAND
> /dev/snd/controlC0: tonydiep 1621 F.... pulseaudio
> CRDA: Error: [Errno 2] No such file or directory
> Card0.Amixer.info:
> Card hw:0 'Intel'/'HDA Intel at 0xf0800000 irq 22'
> Mixer name : 'Intel G45 DEVIBX'
> Components : 'HDA:10ec0272,1025033d,00100001
> HDA:14f12c06,10250093,00100000 HDA:80862804,80860101,00100000'
> Controls : 26
> Simple ctrls : 13
> Date: Sun May 2 16:39:17 2010
> HibernationDevice: RESUME=/dev/sda5
> InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64
> (20100429)
> MachineType: Gateway NV59
> ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-21-generic
> root=UUID=53103199-f27c-4ef8-879c-bf122b4216fe ro acpi=ht quiet splash
> ProcEnviron:
> LANG=en_CA.utf8
> SHELL=/bin/bash
> RelatedPackageVersions: linux-firmware 1.34
> RfKill:
> 0: phy0: Wireless LAN
> Soft blocked: no
> Hard blocked: no
> SourcePackage: linux
> dmi.bios.date: 11/26/2009
> dmi.bios.vendor: Phoenix Technologies LTD
> dmi.bios.version: V1.09
> dmi.board.name: NV59
> dmi.board.vendor: Gateway
> dmi.board.version: Rev
> dmi.chassis.asset.tag: No Asset Tag
> dmi.chassis.type: 10
> dmi.chassis.vendor: Gateway
> dmi.chassis.version: Rev
> dmi.modalias:
> dmi:bvnPhoenixTechnologiesLTD:bvrV1.09:bd11/26/2009:svnGateway:pnNV59:pvrRev:rvnGateway:rnNV59:rvrRev:cvnGateway:ct10:cvrRev:
> dmi.product.name: NV59
> dmi.product.version: Rev
> dmi.sys.vendor: Gateway
>
> To manage notifications about this bug go to:
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>

--
Tony Diep | 416 537 2225