Dolby Atmos not working with Chromecast Ultra

[travisjpick]

I have seen a few forum posts on this, but none have helped me.

My chromecast Details are:

System Firmware Version: 281627

Cast firmware 1.56.281627

I have a Sony STR-DH790 receiver with HDMI in from a PS4, HDMI out to a projector, and a 5.1.2 Atmos speaker setup.  When I play a blu ray with Atmos on the PS4, the receiver tells me it's playing Atmos.

I then unplug the PS4, and plug in my Chromecast Ultra to the same HDMI port.  I've tried to cast Cowboy Bebop on Netflix.  The Mandalorian on Disney + and neither of them will register as playing Atmos.

In the Audio settings of the chromecast in google home, I've selected "auto-detect", "AC3/EAC3 Surround sound", and "AC3 Surround sound only" and nothing seems to work.

Thanks in advance for your help

[Jeran]

Hey there travisjpick,

I apologize for the late response, and thank you for being patient! Were you able to fix that Dolby Atmos issue? If not, I'd be happy to help you out. First, I would make sure your Google Home app is up-to-date. Then, go ahead and clear out the cached app data on the Google Home app as well. Finally, remove the Chromecast device from Google Home and re-add it.

The setup you are currently using would be the recommended configuration. Let me know if the problem persists, and we can have you get a hold of Chromecast Support.

I look forward to your response, and if you have any other questions or concerns for me, please let me know.

Best regards,
Jeran

[travisjpick]

Hi Jeran, thanks for helping out.

I took each thing a step further.  I fully uninstalled google home on my phone and reinstalled it.

I removed the chromecast ultra from google home and then factory reset the chromecast.  I put everything back in and I'm still not getting atmos.  What are the next steps to engage chromecast support?

[Jeran]

Hey there Travis J Pick,

That's no good to hear. Go ahead and fill out this form, and Chromecast Support should reach out to your email in a few days. Just let me know when you fill it out.

Best regards,

Jeran

[travisjpick]

I have filled out the form.

[Jeran]

Hey there travisjpick,

Thank you for doing that! Like I said, you should have someone from Chromecast Support reach out to you in a few days, so keep an eye out in your email for next steps. In the meantime, do you have any other questions I can address? If not, I'll go ahead and lock the thread in 24 hours.

Best regards,

Jeran

[travisjpick]

No other questions at this time

[Jeran]

Hiya travisjpick,

No problem at all! In that case, I'll go ahead and lock this thread in 24 hours. If you have any more questions in the future, feel free to create a new thread.

Have a good one!

Best regards,
Jeran