Hi
I have an RPi 4 (Kodi 18.9) plugged directly into my Samsung UE40MU6240 TV via HDMI. TV is connected to Sony STR-DN1050 receiver via HDMI Arc.
I have been trying to set the TV audio out to Dolby Digital+ but the option is greyed out in the settings. I can play a UHD programme through Amazon Prime and I can select Dolby Digital+ in the TV settings when it is playing but when I go back to Kodi to play a similar programme, the TV switches back to PCM so I think kodi is not outputting the right signal.
I have tried to enable and disable pass through but it makes no difference. The number of output channels is set to 2.0 and Best Match.
Any ideas please?