nvidiadetector.py fails with "IndexError: list index out of range" trying to detect SLI MSI N460GTX

Binary package hint: nvidia-common

This has been blocking an install of a new system. First it was failing using the alternative install disk, then after partitioning and setting up LVM via alt install, a desktop install succeeded. After initial boot from desktop install, upgrading packages wanted to take a new kernel update. The kernel postinstall executes /etc/kernel/postinst.d/nvidia-common which in turn executes /usr/bin/nvidiadetector which exits failing to find a driver for the dual SLI MSI N460GTX Cyclone 1GB cards.

--- /var/log/apt/term.log snippet ---
Setting up linux-image-2.6.32-24-generic (2.6.32-24.43) ...

Running depmod.

update-initramfs: Generating /boot/initrd.img-2.6.32-24-generic

Not updating initrd symbolic links since we are being updated/reinstalled

(2.6.32-24.39 was configured last, according to dpkg)

Not updating image symbolic links since we are being updated/reinstalled

(2.6.32-24.39 was configured last, according to dpkg)

Running postinst hook script /usr/sbin/update-grub.

Generating grub.cfg ...

Found linux image: /boot/vmlinuz-2.6.32-25-generic

Found linux image: /boot/vmlinuz-2.6.32-24-generic

Found initrd image: /boot/initrd.img-2.6.32-24-generic

Found memtest86+ image: /memtest86+.bin

Found Windows 7 (loader) on /dev/sda2

done

Examining /etc/kernel/postinst.d.

run-parts: executing /etc/kernel/postinst.d/nvidia-common 2.6.32-24-generic /boot/vmlinuz-2.6.32-24-generic

Traceback (most recent call last):

  File "/usr/bin/nvidia-detector", line 8, in <module>

    a = NvidiaDetection(printonly=True)

  File "/usr/lib/python2.6/dist-packages/NvidiaDetector/nvidiadetector.py", line 85, in __init__

    self.printSelection()

  File "/usr/lib/python2.6/dist-packages/NvidiaDetector/nvidiadetector.py", line 408, in printSelection

    driver = self.selectDriver()

  File "/usr/lib/python2.6/dist-packages/NvidiaDetector/nvidiadetector.py", line 328, in selectDriver

    choice = self.driversForCards[self.driversForCards.keys()[0]][0]

IndexError: list index out of range

run-parts: /etc/kernel/postinst.d/nvidia-common exited with return code 1

Failed to process /etc/kernel/postinst.d at /var/lib/dpkg/info/linux-image-2.6.32-24-generic.postinst line 1003.

dpkg: error processing linux-image-2.6.32-24-generic (--configure):

 subprocess installed post-installation script returned error exit status 2
---

Editing nvidiadetector.py to turn on verbose mode, it appears to detect two devices which I have installed but then discards them as "unsupported":
root@chariot:~# ./nvidia-detector
NVIDIA card found (10de:0e22)
NVIDIA card found (10de:0e22)
Removing unsupported card 10de:0e22
Traceback (most recent call last):
  File "./nvidia-detector", line 8, in <module>
    a = NvidiaDetection(printonly=True,verbose=True)
  File "/usr/lib/python2.6/dist-packages/NvidiaDetector/nvidiadetector.py", line 85, in __init__
    self.printSelection()
  File "/usr/lib/python2.6/dist-packages/NvidiaDetector/nvidiadetector.py", line 408, in printSelection
    driver = self.selectDriver()
  File "/usr/lib/python2.6/dist-packages/NvidiaDetector/nvidiadetector.py", line 328, in selectDriver
    choice = self.driversForCards[self.driversForCards.keys()[0]][0]
IndexError: list index out of range

root@chariot:~# lspci | grep -i nvidia
03:00.0 VGA compatible controller: nVidia Corporation Device 0e22 (rev a1)
03:00.1 Audio device: nVidia Corporation Device 0beb (rev a1)
04:00.0 VGA compatible controller: nVidia Corporation Device 0e22 (rev a1)
04:00.1 Audio device: nVidia Corporation Device 0beb (rev a1)

root@chariot:~# lshw -C display
  *-display UNCLAIMED
       description: VGA compatible controller
       product: nVidia Corporation
       vendor: nVidia Corporation
       physical id: 0
       bus info: pci@0000:03:00.0
       version: a1
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress cap_list
       configuration: latency=0
       resources: memory:f2000000-f3ffffff memory:c8000000-cfffffff(prefetchable) memory:d4000000-d7ffffff(prefetchable) ioport:df00(size=128) memory:d0000000-d007ffff(prefetchable)
  *-display UNCLAIMED
       description: VGA compatible controller
       product: nVidia Corporation
       vendor: nVidia Corporation
       physical id: 0
       bus info: pci@0000:04:00.0
       version: a1
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress cap_list
       configuration: latency=0
       resources: memory:f6000000-f7ffffff memory:d8000000-dfffffff(prefetchable) memory:e4000000-e7ffffff(prefetchable) ioport:cf00(size=128) memory:e0000000-e007ffff(prefetchable)

ProblemType: Package
DistroRelease: Ubuntu 10.04
Package: linux-image-2.6.32-25-generic 2.6.32-25.44
ProcVersionSignature: Ubuntu 2.6.32-24.39-generic 2.6.32.15+drm33.5
Uname: Linux 2.6.32-24-generic x86_64
Architecture: amd64
Date: Sun Oct 10 17:33:42 2010
ErrorMessage: run-parts: /etc/kernel/postinst.d/nvidia-common exited with return code 1
InstallationMedia: Ubuntu 10.04.1 LTS "Lucid Lynx" - Release amd64 (20100816.1)
SourcePackage: nvidia-common
Title: package linux-image-2.6.32-25-generic 2.6.32-25.44 failed to install/upgrade: run-parts: /etc/kernel/postinst.d/nvidia-common exited with return code 1