If the module is loaded when the brightness is initially to 
level 0, the function "check_for_stepping_quirk()" fails to detect that quirk 
is needed. This is because at level 0 the brightness control behaves in a 
different way.
Increasing the brightness level from 0 to 1 before doing the quirk test fixes 
the problem.

** Patch added: "check-special-case-when-initial-brightness-is-zero.patch"
   
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/810093/+attachment/2539763/+files/check-special-case-when-initial-brightness-is-zero.patch

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https://bugs.launchpad.net/bugs/810093

Title:
  The new (2.6.39+) samsung_laptop kernel module causes serious
  backlight flickering - makes the desktop unusable

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