Samsung N150 Plus backlight does not work with ACPI driver
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Fix Released
|
Undecided
|
Brad Figg | ||
Oneiric |
Fix Released
|
Undecided
|
Unassigned | ||
Precise |
Fix Released
|
Undecided
|
Brad Figg |
Bug Description
SRU Justification:
Impact:
Backlight hotkeys are registered and OSD shows backlight level going up and down but there is no effect on actual backlight level.
Fix:
Apply a system specific quirk to the kernel for this model.
Testing:
TBD
Following the debugging instructions here: <https:/
ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: linux-image-
ProcVersionSign
Uname: Linux 3.0.0-12-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
AplayDevices:
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC269 Analog [ALC269 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
ApportVersion: 1.23-0ubuntu3
Architecture: amd64
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC269 Analog [ALC269 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 0xf0400000 irq 47'
Mixer name : 'Realtek ALC269'
Components : 'HDA:10ec0269,
Controls : 14
Simple ctrls : 9
Date: Sun Oct 16 19:15:03 2011
HibernationDevice: RESUME=
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
MachineType: SAMSUNG ELECTRONICS CO., LTD. N150P
ProcEnviron:
LANGUAGE=en_GB:en
PATH=(custom, no user)
LANG=en_GB.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=
RelatedPackageV
linux-
linux-
linux-firmware 1.60
SourcePackage: linux
StagingDrivers: brcmsmac brcmutil
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 12/20/2010
dmi.bios.vendor: Phoenix Technologies Ltd.
dmi.bios.version: 01GT.M026.
dmi.board.
dmi.board.name: N150P
dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.board.version: Not Applicable
dmi.chassis.
dmi.chassis.type: 10
dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.chassis.
dmi.modalias: dmi:bvnPhoenixT
dmi.product.name: N150P
dmi.product.
dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.
Changed in linux (Ubuntu): | |
status: | New → Confirmed |
tags: | added: patch |
description: | updated |
Changed in linux (Ubuntu Oneiric): | |
status: | New → Fix Committed |
Changed in linux (Ubuntu Precise): | |
status: | In Progress → Fix Committed |
tags: | added: verification-needed-oneiric |
tags: |
added: verification-done-oneiric removed: verification-needed-oneiric |
Would it be possible for you to test the latest upstream kernel? It will allow additional upstream developers to examine the issue. Refer to https:/ /wiki.ubuntu. com/KernelMainl ineBuilds . Please test the release candidate kernel versus the daily build. 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.