I have tried multiple USB adapters, and recently purchased a Plugable SuperSpeed USB 3.0 USB-VGA adapter, because it said it was Windows 8 compatible. But I keep having the same issue where the X coordinate was millions of pixels away from the next monitor. Is there a way to change this manually, or some other way to fix this problem? If I take a screen shot, it shows the background of the monitor, and when I enable the other monitor, it responds with the power light turning green, but just shows a black screen.
I disabled the onboard video because it wasn’t compatible with a program I sorely need to use. So I bought an NVidia card that was compatible, and that shows up as Screen 2, and the USB-VGA adapter is Screen 3.