I've got a Dell Vostro 470 with an AMD Radion HD 7570 graphics card. On the back of my computer, I see a VDI port (looks like it is added as extra) and a VGA port. The primary monitor that I bought with the desktop pc is attached to the DVI port.
Now I've got another ACER AL1721 monitor that I want to attach as a second monitor, so I plug it in into the VGA PORT but nothing happens ("no signal"). The screen resolution window doesn't show a second monitor nor does the Catalyst Control Center.
How can I make this second monitor work/recognized.
What I have tried
- Click 'detect' on the screen resolution window and Catalyst Control Center
- Tried the second monitor on a laptop, works
- Restarting computer
- Updating AMD driver (not sure if I updated correctly, manually searched for an update)
- Went into my BIOS & turned on 'Intel Multi-Display'