I’m running an Alienware Alpha wih Windows 8.1. The Alpha has an Nvidia chipset and a single HDMI output.
I’m using the system with Oculus DK2 VR goggles.
The Oculus won’t run as the computer’s primary display, so I added the Plugable 4K USB Video box to give me a primary display while the Oculus runs from the built in HDMI port. My monitor runs via the 4K box. Both displays are recognized. The Oculus has to be the primary display and the displays are extended, not mirrored.
If no windows are open on the monitor, it dims to the point where you can no longer see the taskbar and you can barely see the mouse cursor.
As soon as I open ANY window (file explorer or an app), the monitor returns to full brightness.
If I minimize all the open windows, it goes back to greyed out mode.
I think I’ve checked all the obvious things. What am I doing wrong?