passworder

I'm having the same issue. I'm using a Waveshare 7HP-CAPQLED 7" HDMI screen and when plugged into my Orange Pi 5 I have no signal/output. However, if I plug my PC monitor in it works. I have a USB-C to HDMI converter and it will only work if I plug my PC monitor into the HDMI port first, which I thought was odd. Does anyone have any solutions for this?