Does Ubuntu 12.04 "Precise Pangolin" boot properly without the change you described in comment #29?
I think that the nouveau driver is doing page-flipping now, so 16MB would be the bare minimum for a 1920x1080x32bit colour display. If there is anything else going on inside the driver you will need more VRAM. ** Changed in: xserver-xorg-video-nouveau (Ubuntu) Status: Triaged => Incomplete -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-nouveau in Ubuntu. https://bugs.launchpad.net/bugs/659018 Title: [Live CD/USB] X failed to start with Nvidia GeForce 6150 [NV4e] To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-nouveau/+bug/659018/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp