can you post your computer specifications .
your gtx 580 is supported by the nvidia propitiatory 310 driver
but your gtx 580 might be unsupported by the "nouveau" open nvidia driver that is used by default
http://en.opensuse.org/Restricted_fo..._Linux_headers
the nvidia driver section
http://en.opensuse.org/SDB:NVIDIA
a lot has changed since 11.2
that version hit it's end of life back on "May 12th 2011 "
the old 2d ONLY nv driver is not the default any more
the opensource 3d "nouveau" is not used by default
you might need to add a line to the grub2 boot line
that also he changed GREATLY since 11.2
hit "e" during the 8 sec. countdown before it boots
ad to the kernel line
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" nomodset " ( without the "" )