Optimus Modesetting fails

I have installed nvidia 319.23/325.08 drivers on Fedora19 and use the xorg.confg found at http://us.download.nvidia.com/XFree86/Linux-x86/319.12/README/randr14.html

When booting, all I see is the loading splash screen, and afterwards, the screen doesn’t change (stuck at fedora logo), but I can tell from sounds that the OS has fully booted.

Looking at the X.log, I have noticed that my log doesn’t have all lines starting with “modesetting(G0):” that other Xlogs posted by others show (see e.g. https://dl.dropboxusercontent.com/u/2675816/Xorg.0.log) and hence I’m guessing that for some reason the modesetting is not run.

Can anyone take a look at my log tell me what’s going on?

Attached: xorg.conf, X.5.log, .xinitrc

X.log: http://pastebin.com/eWeaTvhi
xorg.conf: http://pastebin.com/jbHFTQMd
xinit: http://pastebin.com/mNsuzs5r

xinitrc.txt (70 Bytes)
Xorg.5.log (22.4 KB)
xorg.conf.txt (482 Bytes)