Sorry, should have added stuff like that.
I use agpgart, and (at least on this box) kernel 2.4.18 and .19. I've used the drivers all the way back to 2.4.4 or so, though, just not with the KT333 chipset (obviously -- it's newer than that).
No messing with drive strength. It's set to I believe E9 (possibly set to auto-try-to-detect and E9 is the current setting), but don't quote me on that. I have no idea what drive strength even changes, but I do remember someone saying that setting either nibble to F causes problems... in any case, I don't know what it does, so I don't know for sure what it's set at.
Anything unusual? No, just compiled from tarballs, exactly like every nVidia driver I've used since way back around 0.9-769 or so. I did set fast writes and SBA to enabled in os-registry.c (but only because I didn't want to pass the option on every autoprobe).
Kernel, again, currently 2.4.19 plus -preempt (I applied -preempt myself, but it worked with vanilla 2.4.19 also). I should try 2.4.20 one day, but won't soon.
It has MTRR support, agpgart a module, rtc a module (both loaded); if you want, I can post/attach the full .config file.
BOOT_IMAGE=LFS-gcc3 ro root=305 hdc=ide-scsi
And my /proc/interrupts looks like:
0: 17447979 XT-PIC timer
1: 170380 XT-PIC keyboard
2: 0 XT-PIC cascade
8: 1 XT-PIC rtc
10: 959909 XT-PIC usb-uhci, usb-uhci, eth0
11: 6987900 XT-PIC nvidia
12: 1133045 XT-PIC YMF724F
14: 418556 XT-PIC ide0
15: 11510 XT-PIC ide1
so nvidia isn't sharing anything with anybody.
Oh yeah, now that I think about it, this might be relevant -- I'm still using 3123. I tried 4191 a couple days after release, and got the same error that I had been getting with 2960, "__divdi3 not found in libc6.so with link time reference" messages when I try to load the libglx.so X module (it's a problem with gcc3-compiled glibc/libstdc++/something like that). It took a driver upgrade last time to fix it, and I'm waiting for word from nVidia on when it'll get fixed again -- probably in the next release.
If there's anything else you want to know, ask away, of course.