Hi@RoyalAlice, Welcome to the HP Support Community!
As I understand you need assistance with a dual-display setup and I'll be glad to help,
However, I need a few more details to provide an accurate solution:
Have you ensured both cables (DVI & HDMI) are working on alternate products and if the monitor is powered on and working?
Is this your first time setting up a dual display or have you been there, done that?
Did you install the latest drivers for both your Nvidia graphics and your alternate monitor?
In the meantime, please follow the steps mentioned below:
Start with this YouTube instructions video: Click here
- Before you begin connecting additional monitors to your computer
- Connecting a second display to your computer
- Extending or duplicating the desktop onto a second monitor
- Tips for multiple displays
- Configuring the display with the display driver
- Troubleshooting TV setup as a second monitor
Click here for more steps and details.
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Hope this helps! Keep me posted.
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