I just got the pi-topCEED today. I plugged it in with my existing, working Pi 3B+. The display could show the landing screen with the Raspberry Pi logo and “Recovery Mode” option. Then it went blank, in jet black. That’s it.
I put the Pi-topOS in, it’s even worse. It never passed the color spectrum screen not even showed the Raspberry logo.
Then I tried another working Pi3B+, same thing.
Then I plugged my existing, working 29" 4K HDMI display to both the B+'s, they worked normally. They both loaded the desktop straight after the Raspberry logo landing screen.
I tried to use a different HDMI cable to connect the hub board and my B+, same problem.
At this point, I’m pretty sure it has something to do with the hub unless someone tells me that I’m in fact missing something there.
Please enlighten me.
Thanks.