There was a pretty annoying regression in nvidia support under Kubuntu (and probably regular ole’ Ubuntu) 11.10 – dual monitor support is busted. Ouch.
Confusion abounds on how to fix this, but it seems all you need to do is:
- uninstall nvidia-173
- install nvidia-current
- remove /etc/x11/xorg.conf to cause another one to be regenerated, and then
- Reboot. You’ll be using a newer driver and be able to configure twinview via nvidia-settings per the usual.
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