Question Same 4K TV- Audio From 2 Different HDMI Inputs ?

Prahsper

Distinguished
Jul 3, 2014
114
1
18,585
This is the setup:

3 TV's connected to PC. (2 HDMI TV to Diplay Ports Graphic Card and Main TV connected HDMI ARC TV to HDMI graphic card)
The main TV is connected to Samsung HW-T650 soundbar via optical cable to Asus Xonar DGX soundcard (Optical)
Main TV- HDMI 1 ARC to HDMI Port graphic card. Audio thru soundbar and video thru display-perfect.
Main TV-Chromecast 4K w/Google TV connected to HDMI 2-Video but no sound when I switch the main TV input to HDMI 2 to view the Chromecast.

How can I get audio from Main TV HDMI 2 thru the same soundbar as it does thru HDMI 1?
Thanks