I tried installing a fresh copy of xUbuntu 13.10 on my ASRock 970 UEFI mother with a Sapphire R9 280x video card.
xUbuntu installs fine but when it loads the OS.. I can see the mouse cursor but nothing else.
This happens to kUbuntu 13.10; also when trying Ubuntu 13.10, it will load the OS,background, but when you open anything the screen is fuzzy and can't be used.
Do I have to turn something off on the UEFI bios?
Also, older version of xUbuntu installs and the display works.