Black screen after turning monitor on again.

[Kasumi_Ninja]

I have this strange problem with my Gentoo AMD64 system. I turn my monitor off, when I turn it on again the screen remains black. I can't get in X or the other terminals, I dont have this problem with a Gentoo 32-bit installon on the same machine. My specs:

AMD64 3000
1024 DDR
Gefore 7800 GS AGP

My Xorg.0.log:
http://pastebin.com/778795

Any help would be appreciated!
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