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Graphics Cards

jeffcrass
Adept I
‎05-22-2020 04:39 PM

Dual Monitor Issue with RX 580 and 2 BENQ Monitors - HDMI/DP

I have a custom system with a RX580. I have an old BENQ monitor that works fine when plugged into the HDMI by itself. However, when I plug my new BENQ monitor in via the DP, the HDMI monitor goes blank. It's detected and I can switch to it via Windows Settings, but they won't work at the same time.
Both monitors work fine on their own. No adapters or anything strange. HDMI Out to In and DP Out to In.

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1 Solution
jeffcrass
Adept I
‎05-26-2020 05:55 AM

I appreciate everyone that tried to help. I had a little bit of an epiphany this morning. After digging through a drawer of cables this morning, I found the DP - DP cable that came with the old monitor (my old computer didn't have DP as an option on the graphics card) and plugged it in. Lo and behold, it immediately started working.
Not sure if this is an issue with my set up or not, but apparently, the DP+HDMI combination wasn't working.

I'm in good shape now. All is right with my setup again.

Again, thanks all for your help.

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11 Replies