I was using cec-client on a Raspberry to send hdmi cec messages to my tv to turn it on and off. I’m now looking for a more powerfull SoC that can do the same things but faster. On the hardware page of the Rock Pi 4 I found that this device should also support hdmi cec and I was also able to install the cec-client using this command:
sudo apt-get install cec-utils
But the problem now is that the cec-client does not find any devices:
sudo cec-client -l
libCEC version: 4.0.2, compiled on Linux-4.4.0-142-generic … , features: P8_USB, DRM, P8_detect, randr
Found devices: NONE
I’m using the Ubuntu server image. Is there any tutorial how to get the cec-client to work on this board?