I'm running Ubuntu 12.04, 64 bit, kernel Linux 3.5.0-39-generic, on a system that has an Nvidia GE Force GT 640m / Intel HD graphics 4000 - 1.0 GB graphics processor assembly. In order to get the unity 3d desktop features to work correctly I needed to install bumblebee. The problem this has created is that in order for the desktop effects to work with Optimus laptops you must remove /etc/X11/xorg.conf . If using an Optimus laptop unity 3d will not work until this file is removed after this file has been removed if you replace it the desktop will load into a black screen. The reason I want this file is because without it's having a server layout section containing Option "BlankTime" "0", Option "StandbyTime" "0", Option "SuspendTime" "0", Option "OffTime" "0" my desktop goes blank every 10 minutes this is very frustrating when attempting to intake media.
This is the relevant data from
prefer blanking: yes allow exposures: yes timeout: 600 cycle: 600 DPMS (Energy Star): Standby: 0 Suspend: 0 Off: 0 DPMS is Enabled
if anyone would present me with a solution to this that doesn't involve something as inelegant as installing caffeine or writing a script to move the cursor every so often. my satisfaction would be great.