Just found out something interesing:
I patched nvidi-agp.c not do HardCode the PowerLeven but use PCI_D0 und PCI_D3hot like I've seen the intel driver does..
Trying with Xorg 7.1 and Nvidia 9.626 showed a new symptome:
Now I can suspend and resume with running X if I switched to a tty5 and do
echo "disk" > /sys/power/state
Even with loaded nvidia Module and running XServer!!
Unfortunetly my lucks stops if I try to change to tty12 (my Xconsole)
Also I noticed Xid Errors are alternating with Errors from my rt2500 Card telling me it's MLME Buffer is full!?
kernel: NVRM: Xid (0002:00): 8, Channel 00000020
kernel: rt2500MlmeEnqueue full, msg dropped and may corrupt MLME
and so on..
Could this be some sort of Xorg triggered IRQ Conflct? How could I check?