Comment 12 for bug 1111884

Workaround options for hybrid video systems:

Option 1. In BIOS switch to use only embedded video card (for example UMA only for Lenovo Ideapad Z580A).

Option 2. In BIOS use Optimus video and blacklist nouveau:

sudo gedit /etc/modprobe.d/blacklist.conf

Add a line to the end of file:

blacklist nouveau

Save, close file and restart. (sudo rmmod nouveau does not helpful becaude nouveau is in use). Now if required optimus graphic You can run (and disable suspend until next reboot because rmmod does not work):

sudo modprobe nouveau