https://bugs.freedesktop.org/show_bug.cgi?id=55692
--- Comment #34 from Alexandre Demers alexandre.f.demers@gmail.com --- If Serkan and I are experiencing the same problem as I suspect, I would say this is improbably related to Gnome 3.6 because I'm still using 3.4 (with both kernel 3.6 and 3.7-rc1). We have the same GPU and we are not using plymouth. We are experiencing similar visual problem (can't confirm with a remote connection for now) when moving to kernel 3.7-rcX, but not with 3.6.
I'll bisect kernel tonight and when I'm done. I'll keep you updated.