[SOLVED] Radeon R9 280 cant get 3rd monitor to work

May 6, 2020
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My XFX radeon R9 280 card has 2xDVI, 1XHDMI, and 2Xmini-DP ports
I have Win10
I have 2 identical DVI monitors connected to 2xDVI ports (extended display) and this works fine.
I cant get 3rd 1080P monitor to work from the mini-DP port
I have an active ACCELL mini-DP-to-HDMI adapter (part B086B-012B) for the 3rd monitor
When I connect the 3rd monitor to DP port, it does come ON temporarily for a second and then OFF
Also one of the existing DVI monitor goes (and stays) OFF
I disconnect DP and all back to normal

I have tried so many things and cant get this to work
So please help!
Thanks
 
May 6, 2020
1
0
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  • Deleted by ronqureshi
  • Reason: Duplicate
Problem was the hdmi cable after adapter was too long
i used an hdmi amplifier and it now works ok
 

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