kernel-packages team mailing list archive

["Christopher M. Penalver" <christopher.m.penalver@xxxxxxxxx>]

** Tags added: bios-outdated-2.30

** Description changed:

- Backlight control doesn't work in Ubuntu 14.04 on a Lenovo Thinkpad T61.
- Neither using hotkeys nor the brightness applet.
+ With nvidia driver, backlight control doesn't work in Ubuntu 14.04 via
+ hotkeys or brightness applet.
+ 
+ WORKAROUND: Use nouveau.
  
  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-19-generic 3.13.0-19.40 [modified: boot/vmlinuz-3.13.0-19-generic]
  ProcVersionSignature: Ubuntu 3.13.0-19.40-generic 3.13.6
  Uname: Linux 3.13.0-19-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.13.3-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse:
-  USER        PID ACCESS COMMAND
-  /dev/snd/controlC0:  tommi      1964 F.... pulseaudio
+  USER        PID ACCESS COMMAND
+  /dev/snd/controlC0:  tommi      1964 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Wed Apr  2 22:53:56 2014
  HibernationDevice: RESUME=UUID=3e4b62ed-a926-47a3-ae19-44b96d1376ee
  InstallationDate: Installed on 2014-03-30 (3 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Beta amd64 (20140326)
  MachineType: LENOVO 645745G
  PccardctlIdent:
-  Socket 0:
-    no product info available
+  Socket 0:
+    no product info available
  PccardctlStatus:
-  Socket 0:
-    no card
+  Socket 0:
+    no card
  ProcFB:
-  
+ 
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-19-generic root=UUID=01d49c75-94f4-417c-beae-d16fd8b8df83 ro quiet splash
  RelatedPackageVersions:
-  linux-restricted-modules-3.13.0-19-generic N/A
-  linux-backports-modules-3.13.0-19-generic  N/A
-  linux-firmware                             1.126
+  linux-restricted-modules-3.13.0-19-generic N/A
+  linux-backports-modules-3.13.0-19-generic  N/A
+  linux-firmware                             1.126
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 12/06/2007
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 7LETA7WW (2.07 )
  dmi.board.name: 645745G
  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:bvr7LETA7WW(2.07):bd12/06/2007:svnLENOVO:pn645745G:pvrThinkPadT61:rvnLENOVO:rn645745G:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 645745G
  dmi.product.version: ThinkPad T61
  dmi.sys.vendor: LENOVO

** Summary changed:

- Backlight control does not work, but there are entries in /sys/class/backlight
+ 10de:0429 [Lenovo ThinkPad T61] Backlight control does not work, but there are entries in /sys/class/backlight

** Changed in: linux (Ubuntu)
   Importance: Medium => Low

-- 
You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1301580

Title:
  10de:0429 [Lenovo ThinkPad T61] Backlight control does not work, but
  there are entries in /sys/class/backlight

Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  With nvidia driver, backlight control doesn't work in Ubuntu 14.04 via
  hotkeys or brightness applet.

  WORKAROUND: Use nouveau.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-19-generic 3.13.0-19.40 [modified: boot/vmlinuz-3.13.0-19-generic]
  ProcVersionSignature: Ubuntu 3.13.0-19.40-generic 3.13.6
  Uname: Linux 3.13.0-19-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.13.3-0ubuntu1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  tommi      1964 F.... pulseaudio
  CurrentDesktop: Unity
  Date: Wed Apr  2 22:53:56 2014
  HibernationDevice: RESUME=UUID=3e4b62ed-a926-47a3-ae19-44b96d1376ee
  InstallationDate: Installed on 2014-03-30 (3 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Beta amd64 (20140326)
  MachineType: LENOVO 645745G
  PccardctlIdent:
   Socket 0:
     no product info available
  PccardctlStatus:
   Socket 0:
     no card
  ProcFB:

  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-19-generic root=UUID=01d49c75-94f4-417c-beae-d16fd8b8df83 ro quiet splash
  RelatedPackageVersions:
   linux-restricted-modules-3.13.0-19-generic N/A
   linux-backports-modules-3.13.0-19-generic  N/A
   linux-firmware                             1.126
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 12/06/2007
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 7LETA7WW (2.07 )
  dmi.board.name: 645745G
  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:bvr7LETA7WW(2.07):bd12/06/2007:svnLENOVO:pn645745G:pvrThinkPadT61:rvnLENOVO:rn645745G:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 645745G
  dmi.product.version: ThinkPad T61
  dmi.sys.vendor: LENOVO

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