Re: Geforce 8200 users, I need your help with finding usb hanging issue
I have this problem too, using an Asus M3N78-VM board.
Despite the fact that the 8200 chipset does have issues (especially /w VDPAU media playback), I don't believe the USB issues are Nvidia driver related. It's more likely to be a kernel USB driver thing. Not particularly a driver bug, but somthing IRQ related.
As of now, I am trying to boot the kernel with the parameter acpi=force irqpoll and it seems to work. Maybe you you want to try that.