Screen brightness can not be adjusted in Lucid with Intel Arrandale graphics
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
openSUSE |
Unknown
|
High
|
|||
linux (Ubuntu) |
Won't Fix
|
Undecided
|
Unassigned | ||
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_
# above line doesn't solve problem
# GRUB_CMDLINE_
# above line allows screen brightness but hyperthreading is off
GRUB_CMDLINE_
# above line allows screen brightness adjustment at cost of power, core temp?
# GRUB_CMDLINE_
# above line doesn't solve screen brightness problem
# GRUB_CMDLINE_
# above line does not solve screen brightness problem
# GRUB_CMDLINE_
# above line does not solve screen brightness problem
# GRUB_CMDLINE_
# above line doesn't solve
# GRUB_CMDLINE_
# above line does not allow screen brightness adjustment
# GRUB_CMDLINE_
# above line does not work
# GRUB_CMDLINE_
# above line make linux unbootable. Have to book off USB/CD and manually edit grub.conf
BEST WORKAROUND
GRUB_CMDLINE_
# 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-
Regression: Yes
Reproducible: Yes
ProcVersionSign
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/
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,
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=
ProcEnviron:
LANG=en_CA.utf8
SHELL=/bin/bash
RelatedPackageV
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.
dmi.chassis.type: 10
dmi.chassis.vendor: Gateway
dmi.chassis.
dmi.modalias: dmi:bvnPhoenixT
dmi.product.name: NV59
dmi.product.
dmi.sys.vendor: Gateway
summary: |
- Screen brightness can not be adjusted in Lucid for Gateway NV59 with - Intel Arrandale graphics + Screen brightness can not be adjusted in Lucid with Intel Arrandale + graphics |
Changed in linux (Ubuntu): | |
status: | Incomplete → Confirmed |
Changed in opensuse: | |
importance: | Unknown → High |
status: | Unknown → In Progress |
Changed in opensuse: | |
status: | In Progress → Incomplete |
Changed in opensuse: | |
status: | Incomplete → In Progress |
Changed in opensuse: | |
status: | In Progress → Incomplete |
Changed in opensuse: | |
status: | Incomplete → Unknown |
Hi Tony,
If you could also please 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/KernelMainl ineBuilds . 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.
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