Update time. I went a bought a new HDMI to micro HDMI cable and an official RPi power supply. No change…
So I took the Pi out of the Argon One case I had just put it in, and it started working.
Interestingly, using the power board only, lets the pi operate normally. Using the board, that relocates the HDMI and audio ports, causes the HDMI output to fail.
Has anyone else had similar issues with the Argon One case?
I bought a rp4 from canakit and had the same problem. I’ve ordered an adapter to see if it fixes the issue. It also has a case like @jmbmkn but it’s just a simple plastic one, it’s just holding the rp4 in place. I was able to boot using their included NOOBS memory card, when I formatted with the OSMC image, it loaded and installed, but now when it boots, I see the startup splash icon for OSMC and then it goes blank. My suspicion is that the cable is just not high quality. They include 2 of them for the 2 ports on the Pi. I’ll report back if the adapter works.
Replying for any poor souls who have the same issue. Confirmed that the HDMI cable provided by canakit is insufficient for Kodi, for whatever reason. An HDMI cable from Monoprice and small adapter for the mini HDMI (Pi connection) fixed the problem. Might want to update the docs/wiki on this
Another update. I really want to use the Argon One case, so I went to get the V2 that has full sized type A HDMI sockets. Having now fit my Pi4 in the case, I have the same issue no HDMI output. Can anyone make a guess at why the Argon One case might cause the HDMI output to fail?
You can find a possible solution for the black screen problem if you have a 4K screen and also if you check the Github link in the thread you’ll see there’s a problem with the Argon One’s HDMI passthrough. If you avoid using the passthrough your picture might come back, if it doesn’t then you can try making the changes to configuration files and Kodi settings see if it comes back.