With no immediate resolution to the ARC issue and with no compelling reason to upgrade my "all is well" AVR , i decided to come to terms with whatever I have and started working towards a compromised but a failproof solution.
- Disabled CEC on TV. Changed sound to SPDIF/Optical
- Connected the HDMI cable from HDMI Out (also the ARC port) of the Yamaha V375 receiver to HDMI 3 port of TV (earlier it was HDMI 2 which supported ARC/eARC)
- Changed sound output in TV to Dolby Digital
- Connected Airtel Xstream STB to HDMI 2 of TV
- Connected FS to HDMI Port 1 of TV. CEC was ON. Sound output set to best available
- Disabled ARC on the AVR but CEC was ON.
Here's what's working and what's not :
- Since optical only supports DD , will lose out on DD+
- Able to control the AVR (volume) , power on/off of AVR , FS and TV with FS remote. Both Alexa and Google assistant working fine
- No DD on Prime Video using TVs native app as well as Airtel Xstream box but works on FS. Netflix & Hotstar working fine with 5.1 sound output
- FS is still the fastest UI of all the three. Works seamlessly and apps load much faster.
- At same AVR master volume , optical sound output was louder than ARC . Not sure if it sounded better / worse to my untrained ears.
- TV remote for obvious reasons cant control the AVR now . But even if I switch on CEC on TV , still it is not able to control the AVR for reasons beyond my understanding.
As of now , I am happy that nothing is broken so far while using FS. I will keep using the FS as my primary source for everything except sports which i always watch on STB.