This PPA is causing the same problem as the xorg-edgers one.
2014-04-18 18:23:42,775 DEBUG examining: 'deb http://ppa.launchpad.net/oibaf/graphics-drivers/ubuntu saucy main'
From their page:
=== Revert to original drivers === To revert to standard Ubuntu drivers type the following in a prompt shell: $ sudo apt-get install ppa-purge $ sudo ppa-purge ppa:oibaf/graphics-drivers
This PPA is causing the same problem as the xorg-edgers one.
2014-04-18 18:23:42,775 DEBUG examining: 'deb http:// ppa.launchpad. net/oibaf/ graphics- drivers/ ubuntu saucy main'
From their page:
=== Revert to original drivers === graphics- drivers
To revert to standard Ubuntu drivers type the following in a prompt shell:
$ sudo apt-get install ppa-purge
$ sudo ppa-purge ppa:oibaf/