Dear all!

According to the list of duplicates and bug heat this bug/feature
request is very important.

As you know laptop market share is gigantic (see for example  
http://www.statista.com/statistics/276772/ultrabook-share-of-global-notebook-market-since-2011/
 for stats).
Also Ubuntu and Debian market share are increasing.

So I can't believe why this usability fault exists in Ubuntu (and Debian) for 
years. 
It seems that guys from `systemd` understand the problem correctly (sooner or 
later - on 14 Aug 2013, see 
https://github.com/systemd/systemd/commits/56f64d95763a799ba4475daf44d8e9f72a1bd474/src/backlight/backlight.c
 ), but `upstart` and `sysvinit` developers not.

As you can remember I tried to fix the problem by myself - I created first 
version of an init script for saving and restoring backlight level (on 10 Dec 
2012 - two years ago). 
It had one disadvantage - it operates only when laptop has one graphical 
adaptor and its name was hardcoded to the script (*acpi_video0* in my case).
So today I present new version of a script - it can save and restore backlight 
levels of all graphical, adaptors, which are found in `/sys/class/backlight/*`.
The init script with symlink are packed to archive (see attachment).
If  you have installed its previous version (see comment #15) - you can remove 
its files with commands:
     sudo rm /etc/rc?.d/?25backlight /etc/init.d/brightness
then extract new version with commands:
     sudo tar -zxvf upstart_brightness.tar.gz -C /

I hope my script will help somebody.
Thanks for testing!


** Attachment added: "new version of backlight saving/restoring script"
   
https://bugs.launchpad.net/ubuntu/+source/sysvinit/+bug/1270579/+attachment/4288756/+files/upstart_brightness.tar.gz

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Desktop Bugs, which is subscribed to a duplicate bug report (403075).
https://bugs.launchpad.net/bugs/1270579

Title:
  Ubuntu should have an upstart job for saving/restoring backlight level
  on laptops

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