Chromecast 4k Dongle

Roon Core Machine

Home built gaming PC - Windows 10, Intel(R) Core™ i7-8700K CPU @ 3.70GHz, NVIDIA 3080 GPU, 32.0 GB RAM

Networking Gear & Setup Details

Unify Network

Connected Audio Devices

PC for Roon Core, to NAIM Atom - Chromecast Dongle for Display

Number of Tracks in Library

New User just building library

Description of Issue

Brand new 4K Chromecast Dongle Model Number G9N9N; GZRNL. Chromecast would go into Ambient Mode roughly 7 minutes into a song/playlist on Roon. No settings available to exit. The links posted by Mods on this forum do not solve the issue.

To fix:

On the Chromecast Menu -

Go to settings - > system- > about

Click on android tv os build (my build is 10, yours maybe vary)
When you click nothing will happen. Click and hold and you get the message, “Click 4 Times to Enter Developer Mode.” Keep clicking and it will count down until you are assigned Developer privileges.

Once in Developer mode, go to settings, then system, then developer options and click the toggle switch to “stay awake.”

This will prevent Roon from being taken over by Ambient Mode/Pictures/Banners.

I hope this saves someone several hours of searching and troubleshooting.


Hey @David_Dodson,

Thank you for taking the time to provide this feedback and workaround! We have an existing ticket we’re monitoring, and we’ll add this information to it. We appreciate it :+1:

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