I want to install the latest ubuntu (12.04.2 LTS) in my ultrabook asus S56C.
I tried to boot with USB & CD, but both stuck in black screen after choosing "Try Ubuntu..." or "Install Ubuntu"...
Need some help.
May be your graphics card not detected by ubuntu. Try to install after connecting external monitor.
Here we are!
I fix this by disabling the "Secure boot" in the BIOS.