kernel-packages team mailing list archive

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

Nicolas Devillers, this bug was reported a while ago and there hasn't
been any activity in it recently. We were wondering if this is still an
issue? If so, could you please test for this with the latest development
release of Ubuntu? ISO images are available from
http://cdimage.ubuntu.com/daily-live/current/ .

If it remains an issue, could you please just make a comment to this.

Also, could you please test the latest upstream kernel available (not the daily folder, but the one at the top) following https://wiki.ubuntu.com/KernelMainlineBuilds ? It will allow additional upstream developers to examine the issue. 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-v3.13-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

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.

** Summary changed:

- [Dell Inspiron 15R 5521] Can't toggle backlight brightness
+ 1002:6601 [Dell Inspiron 15R 5521] Can't toggle backlight brightness

** Description changed:

- Since raring at least, it is not possible to setup backlight lightness
- without adding acpi_backlight=vendor into grub boot option.
+ Since raring at least, it is not possible to change backlight
+ brightness.
+ 
+ WORKAROUND: Add acpi_backlight=vendor into grub boot option.
  
  ProblemType: Bug
  DistroRelease: Ubuntu 13.10
  Package: linux-image-generic 3.11.0.7.8
  ProcVersionSignature: Ubuntu 3.11.0-5.11-generic 3.11.0
  Uname: Linux 3.11.0-5-generic x86_64
  ApportVersion: 2.12.1-0ubuntu4
  Architecture: amd64
  AudioDevicesInUse:
-  USER        PID ACCESS COMMAND
-  /dev/snd/controlC0:  nicolas    2839 F.... pulseaudio
+  USER        PID ACCESS COMMAND
+  /dev/snd/controlC0:  nicolas    2839 F.... pulseaudio
  Date: Mon Sep 16 02:05:10 2013
  EcryptfsInUse: Yes
  HibernationDevice: RESUME=UUID=173db09c-bffc-4da9-ab42-7ca73f84e71f
  InstallationDate: Installed on 2013-04-08 (160 days ago)
  InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
  MachineType: Dell Inc. Inspiron 5521
  MarkForUpload: True
  ProcFB:
-  0 inteldrmfb
-  1 radeondrmfb
+  0 inteldrmfb
+  1 radeondrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-5-generic root=UUID=09af3e13-8004-48fa-b0fe-116acbf8d3d7 ro crashkernel=384M-2G:64M,2G-:128M quiet splash acpi_backlight=vendor vt.handoff=7
  RelatedPackageVersions:
-  linux-restricted-modules-3.11.0-5-generic N/A
-  linux-backports-modules-3.11.0-5-generic  N/A
-  linux-firmware                            1.114
+  linux-restricted-modules-3.11.0-5-generic N/A
+  linux-backports-modules-3.11.0-5-generic  N/A
+  linux-firmware                            1.114
  SourcePackage: linux
  StagingDrivers: rts5139
  UpgradeStatus: Upgraded to saucy on 2013-06-24 (83 days ago)
  dmi.bios.date: 06/25/2013
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A09
  dmi.board.name: 0HK2KG
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.chassis.version: A09
  dmi.modalias: dmi:bvnDellInc.:bvrA09:bd06/25/2013:svnDellInc.:pnInspiron5521:pvrA09:rvnDellInc.:rn0HK2KG:rvrA00:cvnDellInc.:ct8:cvrA09:
  dmi.product.name: Inspiron 5521
  dmi.product.version: A09
  dmi.sys.vendor: Dell Inc.

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

** Tags removed: latest-bios-a09
** Tags added: bios-outdated-a12

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

-- 
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/1225811

Title:
  1002:6601 [Dell Inspiron 15R 5521] Can't toggle backlight brightness

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  Since raring at least, it is not possible to change backlight
  brightness.

  WORKAROUND: Add acpi_backlight=vendor into grub boot option.

  ProblemType: Bug
  DistroRelease: Ubuntu 13.10
  Package: linux-image-generic 3.11.0.7.8
  ProcVersionSignature: Ubuntu 3.11.0-5.11-generic 3.11.0
  Uname: Linux 3.11.0-5-generic x86_64
  ApportVersion: 2.12.1-0ubuntu4
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  nicolas    2839 F.... pulseaudio
  Date: Mon Sep 16 02:05:10 2013
  EcryptfsInUse: Yes
  HibernationDevice: RESUME=UUID=173db09c-bffc-4da9-ab42-7ca73f84e71f
  InstallationDate: Installed on 2013-04-08 (160 days ago)
  InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
  MachineType: Dell Inc. Inspiron 5521
  MarkForUpload: True
  ProcFB:
   0 inteldrmfb
   1 radeondrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-5-generic root=UUID=09af3e13-8004-48fa-b0fe-116acbf8d3d7 ro crashkernel=384M-2G:64M,2G-:128M quiet splash acpi_backlight=vendor vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.11.0-5-generic N/A
   linux-backports-modules-3.11.0-5-generic  N/A
   linux-firmware                            1.114
  SourcePackage: linux
  StagingDrivers: rts5139
  UpgradeStatus: Upgraded to saucy on 2013-06-24 (83 days ago)
  dmi.bios.date: 06/25/2013
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A09
  dmi.board.name: 0HK2KG
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.chassis.version: A09
  dmi.modalias: dmi:bvnDellInc.:bvrA09:bd06/25/2013:svnDellInc.:pnInspiron5521:pvrA09:rvnDellInc.:rn0HK2KG:rvrA00:cvnDellInc.:ct8:cvrA09:
  dmi.product.name: Inspiron 5521
  dmi.product.version: A09
  dmi.sys.vendor: Dell Inc.

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