Other Samsung threads.
Issues are common by brand, so most of these issue may apply to your system.
Users usually have posted what they did.

Phoenix SecureCore Tiano bios setup and secure boot is greyed out. You need to set a Supervisor Password in the Security tab
Samsung w/ Phoenix Tiano SecureCore
http://askubuntu.com/questions/76010.../762267#762267
Samsung Ativ Book 9 Plus UEFI Install Troubles - manual copy of grub to /EFI/Boot
http://ubuntuforums.org/showthread.php?t=2230919
Installing Ubuntu 13.10 on a Samsung ATIV Book 9 Plus
http://ubuntuforums.org/showthread.php?t=2203824
Update UEFI/BIOS helped see ports and other issues.
How to: Dual boot Windows 8 and Ubuntu 13.10 on Samsung 900X3E
http://ubuntuforums.org/showthread.php?t=2176559
Samsung Ultrabook Windows 8 & Ubuntu & recovery boot Disk view of partitions post 7
http://ubuntuforums.org/showthread.php?t=2097690
Samsung Series 7 - post #5 Windows 8 & UEFI, Ubuntu only to new SSD
http://ubuntuforums.org/showthread.php?p=12382951
SAMSUNG Series 3 NP365E5C-XXXXX laptops
http://ubuntuforums.org/showthread.php?t=2120763