Re: Trying to make headway into finding the Xid crashes source...
.... I doubt it.
A. They can post a message saying: Xid problem: not ours. Take your case to x.org...
B. At least in my case, yanking out the FX6600 and return the old FX5900 solves the problem.
C. I've sent a couple of bug reports to nVidia; I've yet to get an answer... not even an automated one...
DEV-NG: Intel S2600C0, 2xE52658V2, 32GB, 4x2TB, GTX680, F19/x86_64, Dell U2711.
DEV: Intel S5520SC, 2xX5680, 36GB, 5x320GB, GTX550, F19/x86_64, Dell U2711 (^).
SRV: Tyan Tempest i5400XT, 2xE5335, 8GB, 4x2TB, 9800GTX, F19/x86-64, Dell U2412.
LAP: ASUS N56VJ, i7-3630QM, 16GB, 1TB, 635M, F19/x86_64.