It isn't just fedora, nor is it any 3.6.x kernel. Not sure exactly what the cutoff is, but I made it a few versions past F18's 3.6.0-0.rc2 before it stops working. F17 did something similar when it hit 3.6.x, but they skipped over versions that might have worked. On F17, 3.5.6-1 has been stable for me, but no love ~3.6.5-1 or so.
Note that I've been able to compile a few 3.7.0-rc candidates (at least into rc2) and boot, but those were outside any Fedora distribution (and text only).
[Note: 8.0.18314 on a macbook air has the issue, the same version on an iMac doesn't seem to have problems.]