Re: Sony setup ( Laptop -> HDMI->LCD->HDMI-HTIB) - No sound from home theater speaker
Then in that case your TV HAS to support Audio Return Channel to get audio through DAV-DZ810.
Since you said that it worked earlier, I will assume that your TV is HDMI 1.4 and supports Audio Return Channel. (Although generally if a TV supports Audio Return Channel, then the HDMI ports have the letters ARC printed)
Try the following.
It may be that all of the 4 HDMI INs in your TV do not support Audio Return Channel. Only some of them do. If you get audio from DAV-DZ810 with your DVD player, unplug the DVD player's HDMI from the HDMI IN in your TV and plug in the Laptop HDMI in that port.
Since you have the TV manual, only you can confirm if there is any option in the TV menu which says in the lines of "Audio Return Channel" and what other sub options it may have. Try playing with them or mention them here.
If it still doesn't work there may be some setting in the laptop HDMI Audio which you have to enable. Post screenshots of the laptop HDMI audio settings.
Try the following.
It may be that all of the 4 HDMI INs in your TV do not support Audio Return Channel. Only some of them do. If you get audio from DAV-DZ810 with your DVD player, unplug the DVD player's HDMI from the HDMI IN in your TV and plug in the Laptop HDMI in that port.
- > OK , DAV-810 was connected to the HDMI Port#1 of TV .
I pulled out HDMI from port1 of TV and connected to Port # 3 .
Inserted Audio CD and pressed "One Touch Play " button on Home theater remote. It automatically detected and showed on the screen that DVD player is connected to HDMI 3 and started playing audio. So it worked on Port 1 and Port 3.
I then hooked up Laptop's HDMI cable into Port 1 ( where HT was connected earlier ) of TV. Got the picture but no sound. RCA red and white is already connected to TV and HT.
I then reset the TV ( Press up Arrow on TV remote and pressed power button on TV ) .
When it rebooted , I got the Laptop video on the LCD and also sound. But then that sound was coming from TV speaker . When I checked playback devices on the laptop it was defaulted to Sony-TV nVIDIA High Definition.
Then I accessed Menu of TV and in the audio settings found that TV speaker was selected automatically ( due to hard reset I guess ) . So I changed it to Audio System. Again no audio . I checked playback devices again and found Sony-TV NVIDIA device was selected and that dancing green bar next to it suggest that audio is being sent out to TV ? but cant hear because in the TV settings audio output device is set to "Audio System" . So I guess TV is not actually sending sound over HDMI from Port 1 also whereas that same port1 was working in terms of audio/video when DVD/Receiver was connected to it.
Attaching screenshot of the playback devices list on the laptop. please note that show hidden and disabled items were selected.
I remember reading somewhere that for Sony usually port1 is ARC ready..but I guess thats not true then because in my case ..home theater works when it is connected to Port 3 also.
I will see if manual has any info on this .
Also , attaching screenshot of manual page showing HDMI details ..Dint see ARC anywhere..not even on TV's back and side panel.