kernel-packages team mailing list archive

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

Sam VdE, this bug report is being closed due to your last comment
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1222197/comments/5
regarding this being fixed with an update. For future reference you can
manage the status of your own bugs by clicking on the current status in
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https://wiki.ubuntu.com/Bugs/Status. Thank you again for taking the time
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** Changed in: linux (Ubuntu)
       Status: Incomplete => Invalid

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https://bugs.launchpad.net/bugs/1222197

Title:
  Dell XPS 13 screen always on lowest dim with 3.8.0-30 kernel

Status in linux package in Ubuntu:
  Invalid

Bug description:
  Since installing the latest kernel 3.8.0-30 on my Dell XPS 13, I can
  only use the screen on lowest dim/brightness. Hardware keys as well as
  System Settings have no effect on the dim level.

  I already had issues with the brightness settings before. To make
  hardware keys and System Settings brightness settings work I added

  echo 0 > /sys/class/backlight/intel_backlight/brightness

  to /etc/rc.local and a custom /etc/pm/sleep.d/resume_brightness
  script.

  
  Things tried
  - remove "echo 0 > /sys/class/backlight/intel_backlight/brightness" from previously mentioned scripts
  - add grub boot options "acpi_osi=Linux acpi_backlight=vendor acpi_osi='!Windows 2012'"

  Workaround:

  - keep utilizing "echo 0 > /sys/class/backlight/intel_backlight/brightness" in both scripts
  - boot using the 3.8.0-29 kernel

  This is a regression.

  ProblemType: Bug
  DistroRelease: Ubuntu 13.04
  Package: linux-signed-image-3.8.0-30-generic 3.8.0-30.44
  ProcVersionSignature: Ubuntu 3.8.0-29.42-generic 3.8.13.5
  Uname: Linux 3.8.0-29-generic x86_64
  ApportVersion: 2.9.2-0ubuntu8.3
  Architecture: amd64
  Date: Sat Sep  7 18:09:08 2013
  InstallationDate: Installed on 2013-03-28 (162 days ago)
  InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Alpha amd64 (20130328)
  MarkForUpload: True
  SourcePackage: linux-signed
  UpgradeStatus: No upgrade log present (probably fresh install)

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