kernel-packages team mailing list archive

[Anthony Wong <anthony.wong@xxxxxxxxxxxxx>]

http://ubuntu.5.x6.nabble.com/Quantal-SRU-Fixed-the-duplicated-ACPI-
video-devices-issue-td5017193.html

Close bug as Acelan mentioned v3.6-rc1 can fix the bug in the email
thread.

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

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https://bugs.launchpad.net/bugs/1153977

Title:
  Duplicate ACPI video bus devices for the same VGA controller

Status in “linux” package in Ubuntu:
  Fix Released

Bug description:
  There is no /sys/class/backlight/acpi_video0 if there are suplicate
  ACPI video bus devices declared in the BIOS

  From linus' tree, the issue can be fixed by this commit and verified
  by me.

  commit 86ed4bc83abf530cf2019044b74f89a39dfd6425
  Author: Bob Moore <robert.moore@xxxxxxxxx>
  Date:   Thu May 3 11:08:19 2012 +0800

      ACPICA: Add support for multiple notify handlers
      
      This change adds support to allow multiple notify handlers on
      Device, ThermalZone, and Processor objects. Also re-worked
      and restructured the entire notify support code for handler
      installation, handler removal, notify event queuing, and notify
      dispatch to handler.
      
      Extends and updates original commit 3f0be67("ACPI / ACPICA: Multiple
      system notify handlers per device") by Rafael Wysocki.
      
      Signed-off-by: Bob Moore <robert.moore@xxxxxxxxx>
      Signed-off-by: Lin Ming <ming.m.lin@xxxxxxxxx>
      Signed-off-by: Len Brown <len.brown@xxxxxxxxx>

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