I just got my new CPI 3.1 board and installed it. I bought a mini-HDMI to HDMI adapter, but can’t seem to get any output from it. I have tried plugging it into a monitor, and tried using a PC video capture device. Currently I’m using a Magewell USB capture device to pass the HDMI to USB3 on my laptop. So the setup looks like this…
CPI -> miniHDMI to HDMI adapter -> HDMI cable -> Magewell USB capture -> USB cable -> Laptop
On the laptop I’m running OBS to capture the video from the CPI. Unfortunately it always shows as “No signal”. The magewell works fine on any other HDMI content.
I tried sshing to the CPI and had a look at the xrandr output, in case there was a second display shown, but there isn’t.
cpi@clockworkpi:~$ xrandr xrandr: Failed to get size of gamma for output default Screen 0: minimum 320 x 240, current 320 x 240, maximum 320 x 240 default connected 320x240+0+0 0mm x 0mm 320x240 0.00*
What do I need to do to enable the HDMI out on the CPI?