[Bug 772300] Re: screen brightness reset after closing lid and opening again.

[Launchpad Bug Tracker]

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: acpi-support (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/772300

Title:
  screen brightness reset after closing lid and opening again.

Status in “acpi-support” package in Ubuntu:
  Confirmed

Bug description:
  Binary package hint: acpi-support

  I'm using Ubuntu Natty on an HP ProBook 5320m.
  The screen brightness is reset when closing the lid and opening it again.

  On maximum brightness /sys/devices/virtual/backlight/acpi_video0/brightness contains the value 24.
  After closing and opening the lid it contains the value 0.

  I tried to write /etc/apci/local/lid.sh.{pre,post} scripts to remember and reset the brightness.
  However, there seems to be a bug in the /etc/acpi/lid.sh script that prevents lid.sh.post from being executed.
  I've attached a patch, that solves this problem.

  The pre and post scripts are attached, too. They are just quick hacks
  and probably won't work properly on other laptops.

  ProblemType: Bug
  DistroRelease: Ubuntu 11.04
  Package: acpi-support 0.138
  ProcVersionSignature: Ubuntu 2.6.38-8.42-generic-pae 2.6.38.2
  Uname: Linux 2.6.38-8-generic-pae i686
  NonfreeKernelModules: wl
  Architecture: i386
  Date: Thu Apr 28 12:48:38 2011
  InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Beta i386 (20110413)
  ProcEnviron:
   PATH=(custom, no user)
   LANG=de_DE.UTF-8
   SHELL=/bin/bash
  SourcePackage: acpi-support
  UpgradeStatus: No upgrade log present (probably fresh install)

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