Public bug reported:
i have sony vaio e series laptop on which i am unable to decrease my
backlight brightness
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image-3.2.0-40-generic-pae 3.2.0-40.64
ProcVersionSignature: Ubuntu 3.2.0-40.64-generic-pae 3.2.40
Uname: Linux 3.2.0-40-generic-pae i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu17.1
Architecture: i386
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC269VC Analog [ALC269VC Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: anoop 1778 F.... pulseaudio
Card0.Amixer.info:
Card hw:0 'PCH'/'HDA Intel PCH at 0x94510000 irq 45'
Mixer name : 'Intel PantherPoint HDMI'
Components : 'HDA:10ec0269,104d6a00,00100202
HDA:80862806,104d6a00,00100000'
Controls : 24
Simple ctrls : 11
Date: Mon Apr 22 22:01:45 2013
HibernationDevice: RESUME=UUID=b697a8af-6b9b-4cf2-b7f5-c912f884e454
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111012)
MachineType: Sony Corporation SVE15123CNW
MarkForUpload: True
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-40-generic-pae
root=UUID=507c9df5-bbae-4b07-8dcd-32053de07a10 ro acpi_osi=Linux quiet splash
acpi_osi=Linux aspi_backlight=vender vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.2.0-40-generic-pae N/A
linux-backports-modules-3.2.0-40-generic-pae N/A
linux-firmware 1.79.1
SourcePackage: linux
StagingDrivers: rts_pstor mei
UpgradeStatus: Upgraded to precise on 2013-03-29 (24 days ago)
dmi.bios.date: 11/13/2012
dmi.bios.vendor: Insyde Corp.
dmi.bios.version: R0160D6
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:bvnInsydeCorp.:bvrR0160D6:bd11/13/2012:svnSonyCorporation:pnSVE15123CNW:pvrC904HT4U:rvnSonyCorporation:rnVAIO:rvrN/A:cvnSonyCorporation:ct10:cvrN/A:
dmi.product.name: SVE15123CNW
dmi.product.version: C904HT4U
dmi.sys.vendor: Sony Corporation
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug i386 precise running-unity staging third-party-packages
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https://bugs.launchpad.net/bugs/1171537
Title:
brightness issue in sony vaio
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