kernel-packages team mailing list archive

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

Carl Englund, could you please confirm this issue exists with the latest
development release of Ubuntu? ISO images are available from
http://cdimage.ubuntu.com/daily-live/current/ . If the issue remains,
could you please run the following command in the development release
from a Terminal (Applications->Accessories->Terminal), as it will
automatically gather and attach updated debug information to this
report:

apport-collect -p linux <replace-with-bug-number>

Also, could you please test the latest upstream kernel available following https://wiki.ubuntu.com/KernelMainlineBuilds ? It will allow additional upstream developers to examine the issue. Please do not test the daily folder, but the one all the way at the bottom. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this bug is fixed in the mainline kernel, please add the following tags:
kernel-fixed-upstream
kernel-fixed-upstream-VERSION-NUMBER

where VERSION-NUMBER is the version number of the kernel you tested. For example:
kernel-fixed-upstream-v3.11-rc4

This can be done by clicking on the yellow circle with a black pencil icon next to the word Tags located at the bottom of the bug description. As well, please remove the tag:
needs-upstream-testing

If the mainline kernel does not fix this bug, please add the following tags:
kernel-bug-exists-upstream
kernel-bug-exists-upstream-VERSION-NUMBER

As well, please remove the tag:
needs-upstream-testing

If you are unable to test the mainline kernel, please comment as to why specifically you were unable to test it and add the following tags:
kernel-unable-to-test-upstream
kernel-unable-to-test-upstream-VERSION-NUMBER

Once testing of the upstream kernel is complete, please mark this bug's
Status as Confirmed. Please let us know your results. Thank you for your
understanding.

** Tags added: latest-bios-v1.19 needs-upstream-testing regression-
potential

** Description changed:

- - Running Ubuntu 12.10 amd64.
- - Newest BIOS installed.
- - Problem belongs to third group (as defined in https://wiki.ubuntu.com/Kernel/Debugging/Backlight): "Backlight control does not work, but there are entries in /sys/class/backlight."
- - Neither fn+left/right nor system tools brightness control works. Adding "acpi_backlight=vendor" to bootparams fixes the problem.
+ "Backlight control does not work, but there are entries in /sys/class/backlight."
+ - Neither fn+left/right nor system tools brightness control works.
+ 
+ WORKAROUND: acpi_backlight=vendor
+ 
+ WORKAROUND: With acpi_osi=Linux I can now control the brightness lever
+ with the keys.
  
  ProblemType: Bug
  DistroRelease: Ubuntu 12.10
  Package: linux-image-3.5.0-19-generic 3.5.0-19.30
  ProcVersionSignature: Ubuntu 3.5.0-19.30-generic 3.5.7
  Uname: Linux 3.5.0-19-generic x86_64
  NonfreeKernelModules: wl
  ApportVersion: 2.6.1-0ubuntu6
  Architecture: amd64
  AudioDevicesInUse:
-  USER        PID ACCESS COMMAND
-  /dev/snd/controlC0:  diskdoc    2728 F.... pulseaudio
+  USER        PID ACCESS COMMAND
+  /dev/snd/controlC0:  diskdoc    2728 F.... pulseaudio
  CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
  Date: Sat Dec  8 01:16:24 2012
  EcryptfsInUse: Yes
  HibernationDevice: RESUME=UUID=11efe0be-9f52-4ee5-ae6c-7e025de38353
  InstallationDate: Installed on 2010-06-07 (914 days ago)
  InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100427.1)
  MachineType: Acer Aspire 3820
  MarkForUpload: True
  ProcFB:
-  0 inteldrmfb
-  1 radeondrmfb
+  0 inteldrmfb
+  1 radeondrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-19-generic root=UUID=8b7cae99-dae3-4d14-bbd3-24f82a9e0b57 ro quiet splash rootflags=data=writeback acpi_backlight=vendor vt.handoff=7
  RelatedPackageVersions:
-  linux-restricted-modules-3.5.0-19-generic N/A
-  linux-backports-modules-3.5.0-19-generic  N/A
-  linux-firmware                            1.95
+  linux-restricted-modules-3.5.0-19-generic N/A
+  linux-backports-modules-3.5.0-19-generic  N/A
+  linux-firmware                            1.95
  SourcePackage: linux
  UpgradeStatus: Upgraded to quantal on 2012-12-05 (2 days ago)
  dmi.bios.date: 10/27/2010
  dmi.bios.vendor: Phoenix Technologies LTD
  dmi.bios.version: V1.19
  dmi.board.asset.tag: No Asset Tag
  dmi.board.name: JM31_CP
  dmi.board.vendor: Acer
  dmi.board.version: V1.19
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: Acer
  dmi.chassis.version: V1.19
  dmi.modalias: dmi:bvnPhoenixTechnologiesLTD:bvrV1.19:bd10/27/2010:svnAcer:pnAspire3820:pvrV1.19:rvnAcer:rnJM31_CP:rvrV1.19:cvnAcer:ct10:cvrV1.19:
  dmi.product.name: Aspire 3820
  dmi.product.version: V1.19
  dmi.sys.vendor: Acer

** Changed in: linux (Ubuntu)
       Status: Confirmed => Incomplete

** Summary changed:

- Brightness control not working on Acer TimelineX 3820T using Intel graphics
+ [Acer 3820T] Brightness control not working

** Summary changed:

- [Acer 3820T] Brightness control not working
+ 8086:0046 [Acer 3820T] Brightness control not working

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1087874

Title:
  8086:0046 [Acer 3820T] Brightness control not working

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  "Backlight control does not work, but there are entries in /sys/class/backlight."
  - Neither fn+left/right nor system tools brightness control works.

  WORKAROUND: acpi_backlight=vendor

  WORKAROUND: With acpi_osi=Linux I can now control the brightness lever
  with the keys.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.10
  Package: linux-image-3.5.0-19-generic 3.5.0-19.30
  ProcVersionSignature: Ubuntu 3.5.0-19.30-generic 3.5.7
  Uname: Linux 3.5.0-19-generic x86_64
  NonfreeKernelModules: wl
  ApportVersion: 2.6.1-0ubuntu6
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  diskdoc    2728 F.... pulseaudio
  CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
  Date: Sat Dec  8 01:16:24 2012
  EcryptfsInUse: Yes
  HibernationDevice: RESUME=UUID=11efe0be-9f52-4ee5-ae6c-7e025de38353
  InstallationDate: Installed on 2010-06-07 (914 days ago)
  InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100427.1)
  MachineType: Acer Aspire 3820
  MarkForUpload: True
  ProcFB:
   0 inteldrmfb
   1 radeondrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-19-generic root=UUID=8b7cae99-dae3-4d14-bbd3-24f82a9e0b57 ro quiet splash rootflags=data=writeback acpi_backlight=vendor vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.5.0-19-generic N/A
   linux-backports-modules-3.5.0-19-generic  N/A
   linux-firmware                            1.95
  SourcePackage: linux
  UpgradeStatus: Upgraded to quantal on 2012-12-05 (2 days ago)
  dmi.bios.date: 10/27/2010
  dmi.bios.vendor: Phoenix Technologies LTD
  dmi.bios.version: V1.19
  dmi.board.asset.tag: No Asset Tag
  dmi.board.name: JM31_CP
  dmi.board.vendor: Acer
  dmi.board.version: V1.19
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: Acer
  dmi.chassis.version: V1.19
  dmi.modalias: dmi:bvnPhoenixTechnologiesLTD:bvrV1.19:bd10/27/2010:svnAcer:pnAspire3820:pvrV1.19:rvnAcer:rnJM31_CP:rvrV1.19:cvnAcer:ct10:cvrV1.19:
  dmi.product.name: Aspire 3820
  dmi.product.version: V1.19
  dmi.sys.vendor: Acer

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1087874/+subscriptions