Comment 9 for bug 891947

Installed copy is working using the Nouveau driver. Tried to switch by just disabling the "post-release updates" entry in the 3rd party drivers applet. Rebooted and same problem. This might be because I'd created an xorg.conf in the process of trying to fix my problem. It still listed the "nvidia" driver. After switching that line to "nouveau", commenting out the options that seemed related to the proprietary driver, and manually removing the nvidia-current package using "sudo apt-get remove nvidia-current" it seems to be working as I'd expect (whole screen displayed). Not sure all above is required, but it works for me after doing that.