Trying to use a Mac Pro as a headless media server. Worked just fine when I had a monitor or TV hooked up to it, but now that I've tried to remove a monitor and use it headless, I get a skewed log-in screen and an unusable operating system.
Here's what it looks like when I screen share from my rMBP (though the problem is not unique to my rMBP, I also get the same look from VNC on my iPad, an older iMac, and a non-retina Macbook Pro):
I've tried resetting my com.apple.windowserver.plist, among other ideas. Screensharing returns to normal function if I plug in a monitor for even a short moment. Somehow I am getting a problem with the default resolution when using the Mac Pro without a screen.
Any ideas would be greatly appreciated, thank you.