My vizio v-series 2020 has Dolby vision, but wont enable game mode.

Xbox has updated to a "low latency" version of dolby vision causing issues with most TV's. I have the same issue with my 2018 Vizio P Series.

Once Xbox/MSFT does another update for the Dolby Vision they currently have in use it should support more TV's. There is not garuntee that all TV's will be compatible with 4k Dolby Vision.

I'm extremely annoyed by this too as my new TV is not being used to its full potential.

https://www.forbes.com/sites/johnar...-microsoft-vizio-and-lg-respond/#230928544539

I have the issue with my Vizio P Series Quantum PQ65-F1 TV. I hope the fix comes out soon. Can't believe Xbox would alienate OEMs with Dolby Vision. Poor planning Xbox!!!

My panel has no issues, have tested with everything

CX is new model 2020 has 4k 120hz dolby vision full support

Of course the Blu-Ray disks I'm using are UHD and have Dolby Vision.

Dolby Vision is enabled on Xbox One X settings, TV HDMI ports are in Enhanced mode (4:4:4 4K/UHD HDR 60Hz), and the TV test (that can be found inside Xbox menu) returns all green ticks for my Xbox-to-TV connection.

As said, Dolby Vision works with all streaming apps... but not when playing Blu-Ray UHD Dolby Vision disks.

Hi, my name is Marvina and I will be happy to help you.

I'm sorry you have this problem. Follow the instructions below for a solution.

These are the correct steps for configuration, verify them:

Things to keep in mind:
On Xbox Series X|S, Dolby Vision is available for gaming and media streaming apps.
On Xbox One X and Xbox One S, Dolby Vision is available only for media streaming applications.

The original Xbox One console does not support Dolby Vision.
Dolby Vision is not available for Blu-ray media playback.

To enable Dolby Vision, press the Xbox button  to open the guide, then go to Settings > General > TV & display options > Video modes > Allow Dolby Vision.

To enable Dolby Vision, press the Xbox button  to open the guide, then go to Settings > General > TV & display options > Video modes > Allow Dolby Vision for games.
To check if your display supports Dolby Vision, press the Xbox button  to open the guide, then go to Settings > General > TV & display options > 4K TV details.

For best results, we recommend a direct wired connection from your Xbox to the TV, such as an HDMI cable.
Note Check with your TV manufacturer for firmware updates and Dolby Vision game compatibility.

If your 4K@120Hz TV supports Dolby Vision games in 4K@60Hz but not 4K@120Hz, follow these instructions for Dolby games

Vision and contact the TV manufacturer.
Games in Dolby Vision:
Press the Xbox button  to open the guide and go to Settings > General > TV & display options.
Set Resolution to 4K.

Set Refresh Rate to 60Hz.
Play at 120 fps:
Press the Xbox button  to open the guide and go to Settings > General > TV & display options.
Set Resolution to 4K.

Set Refresh Rate to 120Hz.
If your TV has the latest firmware and you experience screen latency or input lag while playing games in Dolby Vision, disable Dolby Vision while playing games and contact the TV manufacturer.

To disable Dolby Vision, press the Xbox button  to open the guide, then go to Settings > General > TV & display options > Video modes > Allow Dolby Vision > Disable.

If your TV or monitor displays a blank screen after enabling Dolby Vision, disconnect and reconnect the HDMI cable. If you still see a blank screen, restart your Xbox console:
Press and hold the Xbox  button on your controller.
Select Turn off console or Restart console > Restart.

Information source (credits):
https://support.xbox.com/help/hardw...o enable Dolby Vision, press,de video > Allow %20Dolby%20Vision.

I hope I can help you solve it.

Best regards,
Marvina.