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RokuRiamie-D
Community Moderator
Community Moderator

Re: No 4K Dolby Vision on 4800X after 5/10/24 update

Hi @neuikc,

Welcome to the Roku Community!

Thank you for letting us know that the latest update is affecting your Roku setup. We would like to investigate this issue further.

Please provide us with the following details:

  • What is your Roku device's latest software version? (To locate navigate to Settings > System > About)
  • When did you start to experience the issue?
  • Does your Smart TV support 4K Dolby Vision?
  • Could you please send us a screenshot of your TV screen showing the manual settings of the Display type? (To locate navigate to Settings > Display Type

Providing these details, will help us to look closely into the issue.

Regards,
Riamie

Riamie D.
Roku Community Moderator
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Zerobranch
Channel Surfer

Re: No 4K Dolby Vision on 4800X after 5/10/24 update

No, I was never able to resolve this issue, but may have identified the source of the problem...

After resetting the TV to run full Android, I installed Kodi.  Under System Info > Video, the Mali-G52 GPU reports the same specs to Kodi running natively on the TV as I see on a Roku using one of the 4K HDMI inputs: 1920x1080 @ 60.00Hz, HDR10, HLG, Dolby Vision.

Despite this incorrect resolution data, 4K videos still play correctly in all the native Android apps that I have tried.

The Roku seems to (correctly) see this 1080p spec, but then won't let me force an override to 4K with Dolby Vision.  So, while the problems is on the Hisense side, it has forced me to abandon the Roku platform.  Hopefully someone in vendor relations at Roku can help get this sorted.

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