desktop-packages team mailing list archive

[Sebastien Bacher <seb128@xxxxxxxxxx>]

Thank you for taking the time to report this bug and helping to make
Ubuntu better. The issue you are reporting is an upstream one and it
would be nice if somebody having it could send the bug to the developers
of the software by following the instructions at
https://wiki.ubuntu.com/Bugs/Upstream/GNOME. If you have done so, please
tell us the number of the upstream bug (or the link), so we can add a
bugwatch that will inform us about its status. Thanks in advance.

** Also affects: gnome-settings-daemon
   Importance: Undecided
       Status: New

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to gnome-settings-daemon in Ubuntu.
https://bugs.launchpad.net/bugs/862474

Title:
  Backlight control for "dell_backlight" is missing in gsd-backlight-
  helper

Status in Gnome Settings Daemon:
  New
Status in “gnome-settings-daemon” package in Ubuntu:
  Confirmed
Status in “gnome-settings-daemon” source package in Oneiric:
  Confirmed

Bug description:
  Hi,

  Since a quite a while backlight management on my notebook (Dell
  Latitude D830) is quite broken. It started when a patch to manage the
  backlight in the kernel intel-driver was introduced.

  Here is the deal:

  My notebook normally uses the kernel interface "dell_backlight". This
  worked perfectly until the above patch was introduced. New gsd-
  backlight-helper chooses "intel_backlight" as the standard interface.
  When using this, i can still control the backlight but because
  "intel_backlight" assumes 255 steps instead of the correct 7 steps of
  "dell_backlight", "gnome-settings-daemon" can't correctly set and get
  the values.

  After patching the file "gsd-backlight-helper.c" (Adding
  "dell_backlight as an additional kernel-interface) the backlight
  management is back to normal. Please see the attachment for more
  details.

To manage notifications about this bug go to:
https://bugs.launchpad.net/gnome-settings-daemon/+bug/862474/+subscriptions