confirming this bug too...was doing some tweaking to Xorg.conf, and read /var/log/Xorg.0.log and found wfb not found error searched for these files and couldn't locate them
-- NVidia driver missing libwfb https://launchpad.net/bugs/98641 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
