[Bug 581834] [NEW] brightness of display on lenovo thinkpad T60 does not work properly

Launchpad Bug Tracker 581834 at bugs.launchpad.net
Fri Oct 22 08:26:21 UTC 2010

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Since the upgrade from intrepid to lucid, the energyprofiles in KDE dont
work properly on my lenovo T60.

Whenever a new profile is activated, display goes to lowest brightness.
When I use the function keys I can dim brighter, but the onscreen
display does not show the brightness.

Every event that occurs in the profile will dim the display to low
brightness again.

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: linux-image-2.6.32-22-generic 2.6.32-22.33
Regression: Yes
Reproducible: Yes
ProcVersionSignature: Ubuntu 2.6.32-22.33-generic
Uname: Linux 2.6.32-22-generic i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
Architecture: i386
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: AD198x Analog [AD198x Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
 /dev/snd/controlC0:  gwahl      1565 F.... knotify4
                      gwahl      1602 F.... kmix
                      gwahl      1613 F.... amarok
CRDA: Error: [Errno 2] No such file or directory
 Card hw:0 'Intel'/'HDA Intel at 0xee240000 irq 17'
   Mixer name	: 'Analog Devices AD1981'
   Components	: 'HDA:11d41981,17aa2025,00100200'
   Controls      : 21
   Simple ctrls  : 12
 Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw 79HT45WW-1.04'
   Mixer name	: 'ThinkPad EC 79HT45WW-1.04'
   Components	: ''
   Controls      : 2
   Simple ctrls  : 1
 Simple mixer control 'Console',0
   Capabilities: pvolume pvolume-joined pswitch pswitch-joined penum
   Playback channels: Mono
   Limits: Playback 0 - 14
   Mono: Playback 8 [57%] [on]
Date: Mon May 17 18:53:22 2010
HibernationDevice: RESUME=UUID=6ec7bd66-1e47-4dcf-8b0e-d9cc03a5cb02
InstallationMedia: Kubuntu 9.10 "Karmic Koala" - Release i386 (20091028.5)
MachineType: LENOVO 1951WBX
 Socket 0:
   no product info available
 Socket 0:
   no card
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-22-generic root=UUID=bb09f116-e058-4864-99ea-c5923cff8e16 ro quiet splash
 PATH=(custom, user)
 LANG=de_DE at euro
RelatedPackageVersions: linux-firmware 1.34
SourcePackage: linux
dmi.bios.date: 06/12/2006
dmi.bios.vendor: LENOVO
dmi.bios.version: 79ET62WW (1.07 )
dmi.board.name: 1951WBX
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr79ET62WW(1.07):bd06/12/2006:svnLENOVO:pn1951WBX:pvrThinkPadT60:rvnLENOVO:rn1951WBX:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 1951WBX
dmi.product.version: ThinkPad T60
dmi.sys.vendor: LENOVO

** Affects: kdebase-workspace (Ubuntu)
     Importance: Undecided
         Status: New

** Tags: apport-bug i386 lucid needs-upstream-testing regression-potential resume suspend
brightness of display on lenovo thinkpad T60 does not work properly
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