Don't know if anyone still visits this thread but just in case someone stumbles in here through Google, I have solved most of the issues found on recent Samsung laptops.
Check out my thread (I am not promoting, just want to provide a solution):
http://ubuntuforums.org/showthread.php?t=1680872
If the solutions posted by me actually work then do post on the thread so others can see. It is very critical that people solve these issues as Samsung makes some great laptops
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