topic Re: Dolby Vision is not working no matter what in Streaming

Dolby Vision is not working no matter what

apn3agr — Tue, 07 Dec 2021 06:44:24 GMT

I have a Sony A1 OLED TV and i have attached CCwGTV on HDMI 3 port and activated "Enhanced mode"

no matter how many times i tried and with multiple settings, i cannot play Dolby Vision content. Only HDR. I tried all resolutions, Matched vs Dolby Vision only, changed HDMI ports.. nothing. The best i get is HDR, never DV. Even when i force to play Dolby Vision only, i don't even get HDR - just standard playing.

Netlflix app shows that DV is available, but it will just not play it. Only HDR.

I tried other apps (YouTube, Amazon Prime, Apple TV) - i only get HDR.

I tried resetting CCwGTV, didn't fix it.

The TV supports DV, if i use the native apps they play fine.

Please help

Re: Dolby Vision is not working no matter what

djtetei — Tue, 07 Dec 2021 10:56:38 GMT

Make sure to connect the Chromecast device to the TV HDMI input which has HDR setting enabled. As far as I know, you TV model has separate settings for each HDMI input.

Reboot both the TV and the Chromecast device by unplugging them from the main power grid for about 5 minutes then plug them back in.

Re: Dolby Vision is not working no matter what

apn3agr — Tue, 07 Dec 2021 11:42:06 GMT

Thanks. I’ve already identified the ports, hdmi 3 & 4 support the enhanced mode.

I do receive HDR signal but no Dolby Vision even If I force it through Chromecast settings. I’ve also tried multiple resolutions but no luck.

Re: Dolby Vision is not working no matter what

djtetei — Tue, 07 Dec 2021 11:57:21 GMT

You might want to check Sony TV model for a software update, because some time ago, on this particular model, Dolby Vision worked only on the built-in apps and not on HDMI inputs.

As a sidenote, Google Chromecast with Google TV just received a software update, to the version 210311.036

Re: Dolby Vision is not working no matter what

apn3agr — Tue, 07 Dec 2021 11:59:37 GMT

I have the latest firmware installed on the tv.

I have also updated Chromecast to the latest version (in the hopes this would fix it, as there was a Dolby Vision playback fix mentioned in the notes)

And according to this, DV through HDMI is supported on my TV on the condition that "HDMI devices with Dolby Vision playback such as streaming media players and UHD Blu-ray players may require a software update. For more information about the update, contact the device manufacturer.", where manufacturer is google in this case.

Re: Dolby Vision is not working no matter what

djtetei — Tue, 07 Dec 2021 12:01:22 GMT

Check your Chromecast device software version also. It should be 210311.036.7814738.

Re: Dolby Vision is not working no matter what

apn3agr — Tue, 07 Dec 2021 12:01:28 GMT

I updated that as well (missed your point before, check my previous comment - edited)

Re: Dolby Vision is not working no matter what

djtetei — Tue, 07 Dec 2021 13:14:20 GMT

You can also try to clear cache and data for the Netflix application on your Chromecast device and verify its behaviour.

If that will not resolve it, I would suspect a HDMI handshake issue.

Re: Dolby Vision is not working no matter what

apn3agr — Tue, 07 Dec 2021 13:20:43 GMT

Tried that as well - same behavior.

I suspect something similar. is there any way we can escalate this issue to Google? I doubt there’s anything else I can do from my end. I’ve tried every setting/solution possible.

Re: Dolby Vision is not working no matter what

djtetei — Tue, 07 Dec 2021 13:28:50 GMT

I woulld ask both Google and Sony (including inside their forum) about the issue.

You can contact Google support via live message board and submit feedback with logs enabled.

Re: Dolby Vision is not working no matter what

djtetei — Tue, 07 Dec 2021 13:32:21 GMT

If you have acces to a good HDMI switch with Ultra HD and HDR capabilities, I would also suggest you to try to connect the Chromecast device to the HDMI switch and run a very good hdmi 2.0 cable from the switch output to the TV HDMI input.

That will help you clear a possible HDMI handshake issue when connecting the Chromecast device and the TV directly.

Re: Dolby Vision is not working no matter what

Jeran — Mon, 13 Dec 2021 19:17:39 GMT

Hey there,

Did you have any more questions or need any additional help? If not, I'll go ahead and lock up this thread in 24 hours.

Just checking up,
Jeran

Re: Dolby Vision is not working no matter what

Jeran — Tue, 14 Dec 2021 21:44:02 GMT

Hey there!

We haven't heard back from apn3agr, and it's been a few days, so I'm locking the thread. As always, feel free to make a new thread if you have any more questions or concerns.

Thank you for your help, djtetei!

Best regards,
Jeran