<div dir="ltr"><p>There is a bug in Ubuntu upstart - see <a href="https://bugs.launchpad.net/bugs/1270579">bug 1270579</a>.<br></p><p style="margin-left:40px">HOW TO REPRODUCE:<br>
1. Boot a laptop.<br>
2. Set a different screen brightness level.<br>
3. Reboot.</p><div style="margin-left:40px">
</div><p style="margin-left:40px" id="yui_3_10_3_1_1422526784410_3807">RESULT:<br>
Backlight is not memorized.</p><div style="margin-left:40px">
</div><p style="margin-left:40px">FIX:<br>
Into the "Terminal" application, enter the following lines one by one:<br>
  - wget <a rel="nofollow" href="https://bugs.launchpad.net/ubuntu/+source/upstart/+bug/1270579/+attachment/4288756/+files/upstart_brightness.tar.gz">https://bugs.launchpad.net/ubuntu/+source/upstart/+bug/1270579/+attachment/4288756/+files/upstart_brightness.tar.gz</a><br>
  - sudo rm /etc/rc?.d/?25backlight /etc/init.d/brightness<br>
  - sudo tar -zxvf upstart_brightness.tar.gz -C /<br>
  - rm upstart_brightness.tar.gz</p><p><br></p><p>Please react.<br></p></div>