Re: X crashes systematically at startup (Ubuntu 11.10, 8800M GTX/G92M)
At least using nouveau right now I can do that remove & rescan as often as I like, without any problems (screen gets black and gets back on). Dmesg indicates the driver is reinitalized. No such message "can't allocate mem resource". Did you try that running the nvidia drivers or with nouveau? I just had nouveaufb running (didn't try that with an X server running, because I don't think that would be such a good idea).