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Cannot get 2200G Vega 8 to display through HDMI switches

Question asked by jmod427 on Jan 4, 2020

Despite exhaustive efforts, I cannot get my 2200G to output to displays through HDMI switches. I've tried multiple switches (other devices output through them just fine), updated to latest drivers and BIOS (ASRock B450M Pro4), tried disabling HDCP, lower resolution and color gamut settings, tried different displays...all to no avail. I believe this is a driver issue on the Vega 8. Could also be an EDID/handshake issue through the switch as both displays work fine connected directly to source devices...just not through the switches. Last ditch effort besides a driver fix would be to get another GPU, which I don't really want to do. 

I've attached the EDID dumps from both displays I've tried.