560Ti + 550Ti + 304.43 + xrandr = Crash
I was trying to use the xrandr command to rotate a screen left, and got this crash. The middle screen has no rotation, and the screen off to the left has rotation. It's rotation works just fine. The screen off to the right is supposed to be rotated, but it wasn't working, hence the xrandr command.
The setup is a 560Ti, 550Ti, QuadHD screen, and two Dell 30" monitors. The QuadHD screen is actually two 2160x3840 screens right next to each other with no bezel. These are using TwinView off the 560Ti card. The two Dell 30" monitors are not using Twinview, and each run as their own X server. They are connected to the 550Ti.
This is on a Ubuntu Lucid 10.04 machine running the 3.0.0-24-generic kernel(oneiric-backport). The version of the driver is 304.43.
0: /usr/bin/X (xorg_backtrace+0x28) [0x45fcc8]
1: /usr/bin/X (0x400000+0x5dfbd) [0x45dfbd]
2: /lib/libpthread.so.0 (0x7f40adbee000+0xf8f0) [0x7f40adbfd8f0]
3: /usr/bin/X (0x400000+0x14951e) [0x54951e]
4: /usr/bin/X (0x400000+0x1498d2) [0x5498d2]
5: /usr/lib/xorg/extra-modules/nvidia_drv.so (0x7f40a762d000+0xd8c26) [0x7f40a7705c26]
6: /usr/lib/xorg/extra-modules/nvidia_drv.so (0x7f40a762d000+0x37051b) [0x7f40a799d51b]
7: /usr/bin/X (ProcRRSetScreenSize+0x1a2) [0x525e72]
8: /usr/lib/xorg/extra-modules/nvidia_drv.so (0x7f40a762d000+0x37277f) [0x7f40a799f77f]
9: /usr/bin/X (0x400000+0x4418c) [0x44418c]
10: /usr/bin/X (0x400000+0x261aa) [0x4261aa]
11: /lib/libc.so.6 (__libc_start_main+0xfd) [0x7f40ac8e0c4d]
12: /usr/bin/X (0x400000+0x25d59) [0x425d59]
Segmentation fault at address 0x30
Caught signal 11 (Segmentation fault). Server aborting