Q:However, I don't know what the PPA for the 'official' Xorg is - is it within the normal Ubuntu PPAs?
A:You do not need a ppa for the official xorg it is just in precise main. Q:I've disabled the edgers one and tried to reinstall x but still not having much success. A:You can try first to install the components from terminal, unfortunally I could not find nvidia specific, I have only ati/amd for know, but the principle components must be similiar(have a internet search please for nvidia): sudo apt-get install xserver-xorg-video-ati sudo apt-get install --reinstall libgl1-mesa-glx libgl1-mesa-dri xserver-xorg-core Remove first the ppa from sources.list (/etc/apt/sources.list), when you do manually you need gksu nautilus -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1069133 Title: Get upgrade error 12.04 - 12.10 "Could not determine upgrade" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1069133/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs