Ubuntu 14 bloqueado al hacer login después de actualizar drivers NVIDIA (freeze after login)

http://askubuntu.com/questions/15433/unable-to-lock-the-administration-directory-var-lib-dpkg-is-another-process


http://askubuntu.com/questions/451620/how-to-completely-remove-kubuntu-desktop-from-ubuntu


http://www.psychocats.net/ubuntu/pureubuntu


http://ubuntuforums.org/showthread.php?t=904619


http://ubuntuforums.org/showthread.php?t=2140206&page=2


http://complete-concrete-concise.com/ubuntu-2/ubuntu-12-04/ubuntu-12-04-how-to-completely-uninstallremove-a-packagesoftwareprogram


http://askubuntu.com/questions/451620/how-to-completely-remove-kubuntu-desktop-from-ubuntu


http://askubuntu.com/questions/127698/how-can-i-install-unity-in-kubuntu-12-04


http://askubuntu.com/questions/474427/how-do-i-install-and-uninstall-kubuntu-desktop-environment


http://askubuntu.com/questions/79636/how-to-remove-all-traces-of-kde-installed


http://itsfoss.com/fix-unity-freezes-after-login-ubuntu-14-04/


https://forums.opensuse.org/showthread.php/462665-stop-start-KDE-from-the-command-line-%28Terminal%29


http://ubuntuhandbook.org/index.php/2014/04/install-nvidia-driver-331-67-ubuntu1404/


http://ubuntuforums.org/showthread.php?t=2138644


http://askubuntu.com/questions/451221/ubuntu-14-04-install-nvidia-driver


http://planetadiego.com/2012/10/19/solucion-al-problema-de-no-ver-el-escritorio-despues-de-instalar-el-driver-nvidia-ubuntu-12-10/


http://www.ubuntu-es.org/node/184278#.VJMQLmcBZA


http://foro.desdelinux.net/viewtopic.php?id=58


http://www.ubuntu-guia.com/2012/07/restaurar-gnome-compiz-y-unity-en.html#1


http://www.ubuntu-es.org/node/184268#.VJMKOGcBZA


http://askubuntu.com/questions/277517/what-does-ctrl-alt-f12-do