HDR Issues for Roku Ultra 2024
I have the new 2024 Roku Ultra (4850) and I cannot get HDR to work on the Peacock app. Additionally, HDR works on Disney+ but it is washed out and there is no contrast between light and dark at all. Anyone else having these issues? Upgraded from a 2017 Roku Stick+ that did not have these issues. Firmware is updated on the device and have manually updated all apps.
The Peacock app on the 4850 wasn't provisioned for 4K/HDR/Atmos until last Friday (10/10/24) but it should support 4K/HDR/Atmos now (10/15/24).
For Disney+ try changing the HDR subsampling from 4:2:0 to 4:2:2 (in Advanced Display Settings) and see if that changes anything.
You didn't mention your brand/model TV/PJ or AVR/SB and how the 4850 is connected or the Display type detected/configured for the 4850, and all of this does matter.
Otherwise a new firmware version (14.0.4 build 12222) was released 10/14/24 - make sure you update to this newer version and try the D+ app's HDR output again (along with different HDR subsampling).