Re: Strange problem after hardware upgrade
You could start by looking for where the problem may obviously lie by using dmesg, lsmod and top/system monitor. I'd think the problem would be in whatever kernel settings you built it with and little to do with the driver, so start there first and maybe look into motherboard(if it's new also) hardware/bios quirks along with it. And since you're using nVid hardware you won't need to build the vgaarb or DRM (Direct Rendering Manager) kernel parts. Just guessing...