I have 1 RPi 4 and 1 RPi5. Currently I am running RPi5. But it's the same on both . The Pi is connected to AVR and the Output goes to my Hisense TV and a Beamer.
CEC is not working since the start. TV only recognizes the AVR. Can't navigate in Kodi with the TV RC.
The guys on the Kodi-Forum suggested to ask for help here. I found here that there is an interference because Kodi is using the CEC but don't know how to get around this. I need Kodi and it used to work for years flawlessly with my older Pi 3.
LibreELEC2:~ # echo 'scan' | cec-client -s -d 1
opening a connection to the CEC adapter...
ERROR: [ 21] CLinuxCECAdapterCommunication::Open - ioctl CEC_ S_MODE failed - errno=16
ERROR: [ 21] could not open a connection (try 1)
ERROR: [ 1021] CLinuxCECAdapterCommunication::Open - ioctl CEC_ S_MODE failed - errno=16
ERROR: [ 1021] could not open a connection (try 2)
ERROR: [ 2022] CLinuxCECAdapterCommunication::Open - ioctl CEC_ S_MODE failed - errno=16
ERROR: [ 2022] could not open a connection (try 3)
ERROR: [ 3022] CLinuxCECAdapterCommunication::Open - ioctl CEC_ S_MODE failed - errno=16
ERROR: [ 3022] could not open a connection (try 4)
ERROR: [ 4022] CLinuxCECAdapterCommunication::Open - ioctl CEC_ S_MODE failed - errno=16
ERROR: [ 4022] could not open a connection (try 5)
ERROR: [ 5022] CLinuxCECAdapterCommunication::Open - ioctl CEC_ S_MODE failed - errno=16
ERROR: [ 5022] could not open a connection (try 6)
ERROR: [ 6022] CLinuxCECAdapterCommunication::Open - ioctl CEC_ S_MODE failed - errno=16
ERROR: [ 6022] could not open a connection (try 7)
ERROR: [ 7022] CLinuxCECAdapterCommunication::Open - ioctl CEC_ S_MODE failed - errno=16
ERROR: [ 7022] could not open a connection (try 8)
ERROR: [ 8022] CLinuxCECAdapterCommunication::Open - ioctl CEC_S_MODE failed - errno=16
ERROR: [ 8022] could not open a connection (try 9)
ERROR: [ 9023] CLinuxCECAdapterCommunication::Open - ioctl CEC_S_MODE failed - errno=16
ERROR: [ 9023] could not open a connection (try 10)
unable to open the device on port Linux
ERROR: [ 10023] could not start CEC communications