I recently upgraded my gaming setup with an RTX 5090 for my golf simulation PC, which I use with a Hans G 23" touchscreen monitor and a Benq TK710sti 4K projector. Everything runs perfectly in 4K resolution. I've seen other users in forums successfully casting their golf stats to a secondary projector using OBS Studio, which looked pretty straightforward. So, I got myself a budget projector from Amazon to do the same.
However, I haven't been able to connect my sim PC to the projector using Miracast. Interestingly, my Microsoft Surface casts to it without a hitch, but my sim PC isn't recognizing it. I've followed numerous tutorials on setting up Miracast, but I keep running into a wall. When I run dxdiag and save the report, it states "Miracast: Not Supported by Graphics driver." I've tried updating to the latest driver (from 2026), but that hasn't resolved anything. I even rolled back to an earlier driver version without success. I'm at a loss here! Is there anything I can do to enable Miracast on my RTX 5090?
3 Answers
You might want to check if your motherboard has an onboard GPU. If it does, disabling the RTX 5090 and using the onboard graphics could be worth a shot. Let us know how it goes!
Make sure to double-check if your current display settings are configured correctly for Miracast. Sometimes, changing the resolution or refresh rate can help. It's a bit of trial and error!
Have you tried temporarily disabling the RTX 5090 to see if it can connect using the onboard GPU instead? If you have a compatible motherboard, it could work. Just a thought!
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