Domagoj

I'm using HDMI OUT/TV port on RP-HUB1 to display content from different sources (laptop, cable apple TV) on projector or tv but all of the suddent it stopped working (no video signal on TV or projector) although I can hear sound from sources so it seems only that port has a problem. Any suggestion what to check or how to resolve since basically I cannot watch anything just listening to sound. Thanks.