When I have the monitor plugged directly in the nvidia card it goes directly to a blank screen with no messages at all.
I get a blank screen when going back to the onboard intel graphics so I’m assuming it’s turned off correctly. The bios allows me to choose either one so I think it turns off the one that is not selected.
I have the intel onboard graphics turned on now and I’m back in a normal desktop.
Not sure if it’s worth mentioning but the proprietary drivers and nouveau work fine in ubuntu 14.04 and mint 17 without this issue so perhaps it’s something to do with the driver configuration?
Let me know if you need more information or if you think I should try the proprietary driver.
thanks