Hi guys, I have an older DIY Mac Pro and I am running Mavericks.
I have recently tried to use a second monitor but the OS doesn't seem to like it.
The main monitor is connected by DVI, and the second one is connected by VGA.
Looking in System Preferences I cannot see an option in 'Displays'...
I've got a 2011 iMac 21.5" with the embarrassingly mentioned Radeon HD 6750M 512mb... shocker
My question is: I found software to disable my iMac screen and use an external display as primary screen. Software link:
Eun/DisableMonitor - https://github.com/Eun/DisableMonitor
If I disable my...