Are three-display configurations supported using a USB display?
No, using a USB display does not support three-display configurations.
I had 3 displays working before a Microsoft Security update just before Christmas, with 2 Tritton VGA-to-USB adapters and drivers. I switched to the USB 3.0 versions of VGA-to-USB adapters and that is when I noticed the issue with the Intel Graphics driver not functioning.
Heavyone, I have the exact same error and have no use of my 2 monitors. I've also been scouring the net to find a solution. Why isn't intel working with Microsoft on this? Geez. If you get anywhere, please update us on this and I will do the same.
I completely agree with you that Intel and Microsoft should be working on a solution for this issue. I still have the problem with the driver, but I solved the issue with the 2nd and 3rd monitors by spending a little money to solve it. I went to Best Buy and bought 2 USB-to-VGA adapters ($15 a piece), and I bought a USB 3.0 Hub ($24). I plugged the 2nd and 3rd monitors into the adapters and then I plugged the adapters into the hub which was plugged into a USB 3.0 port on the back of the desktop. Once that happened, I was able to choose different resolutions other than 800x600. I hope that helps.