getting black screen on steam games with sound in background

[markedog]

ever since i got a 2nd gpu i can't play steam game with out having to unplug both cables from the 2 screens i have and swapping them over if i dont i just get a black screen with sound i was using Crimson Edition 16.9.1 Hotfix then my 2nd gpu stop showing so i had to uninstall the driver and this time i chose to get Crimson Edition 16.7.3 and it still have the same problem my 1st card is a hd 7970 sapphire 6gb and the 2nd is a hd 7950 from gigabyte. i have pull both gpu out and palce them back in and it still happen

 

[photonboy]

POWER:
Make sure you have all power connections properly attached and secure to both cards.

Verify hardware:

1. Shut down and remove new GPU, attach only one monitor
2. Verify
3. Swap to second monitor
4. Verify

5. Shut down, and swap to new GPU (same PCIe slot)
6. test both monitors

7. Shut down, then switch either GPU to the other PCIe used
8. Test (to ensure no issues with that slot)

9. Working? Then it's a software (driver likely) issue likely.

Software testing:
1. DDU http://www.guru3d.com/files-details/display-driver-uninstaller-download.html
2. Install newest driver (unless you think an older one might work better?)

3. Test without Crossfire first.
4. Try with 2nd monitor attached to GPU#1, and also try GPU#2 to see if it makes a difference (unless you want both monitors for the SAME game I don't think it matters. both monitors for same game means split in middle so not a good idea)

5. If everything working now, then get Crossfire setup.

Summary:
I didn't quite follow your post.

I'm unclear whether the new GPU was shown to work at all. Anyway, start there but skip steps if they do not apply.

 

[photonboy]

Other:
Some cards may have two outputs that can be used separately, but not together.