Hi thanks for your feedback [esp re my slider ;-)].

I tried doing what you asked but I got the following errors:

Traceback (most recent call last):
  File "/usr/share/apport/apport-kde", line 522, in <module>
    sys.exit(UserInterface.run_argv())
  File "/usr/lib/python2.7/dist-packages/apport/ui.py", line 656, in run_argv
    return self.run_update_report()
  File "/usr/lib/python2.7/dist-packages/apport/ui.py", line 540, in 
run_update_report
    apport.packaging.get_version(p)
  File "/usr/lib/python2.7/dist-packages/apport/packaging_impl.py", line 120, 
in get_version
    pkg = self._apt_pkg(package)
  File "/usr/lib/python2.7/dist-packages/apport/packaging_impl.py", line 113, 
in _apt_pkg
    return self._cache()[package]
  File "/usr/lib/python2.7/dist-packages/apport/packaging_impl.py", line 81, in 
_cache
    self._apt_cache = apt.Cache(progress, rootdir='/')
  File "/usr/lib/python2.7/dist-packages/apt/cache.py", line 101, in __init__
    self._check_and_create_required_dirs(rootdir)
  File "/usr/lib/python2.7/dist-packages/apt/cache.py", line 131, in 
_check_and_create_required_dirs
    open(rootdir + f, "w").close()
IOError: [Errno 13] Permission denied: '//etc/apt/sources.list'

Note that I do not have a /etc/apt/sources.list on my system since I put
in individual .list for my local repos, my preferred net repos etc files
under /etc/apt/sources.list.d/.

Please tell me how to go ahead. Do you want me to temporarily rename one
of them to /etc/apt/sources.list?

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to xserver-xorg-video-intel in Ubuntu.
https://bugs.launchpad.net/bugs/1255428

Title:
  LCD brightness control keys and widget do not work on Intel Graphics
  on Saucy

Status in “xserver-xorg-video-intel” package in Ubuntu:
  Incomplete

Bug description:
  After upgrading to Saucy, on my Lenovo IdeaPad Z570 with Intel HD
  Graphics 3000, it is no longer possible to control the LCD brightness
  using the hardware brightness control keys. Likewise for the KDE power
  management settings or the battery icon on my Kubuntu Plasma tray. (I
  don't use GNOME/Unity.) Until Raring I did not have this problem.

  There is a workaround available from
  http://askubuntu.com/questions/362894/changing-the-brightness-stopped-
  working-in-13-10-saucy-salamander i.e. doing the following command on
  a terminal:

  echo 150 | sudo tee /sys/class/backlight/intel_backlight/brightness

  where 150 is on the scale of 0 to whatever is given within
  /sys/class/backlight/intel_backlight/max_brightness.

  Based on this I wrote a GUI which however needs to be run using
  sudo/kdesudo/gksudo. I have attached it.

  Bug #1241745 also relates to the same problem on Saucy but apparently
  relates to an NVidia driver and I was asked to track this as a
  separate bug
  https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1241745/comments/17

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1255428/+subscriptions

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