So I switched from a streaming stick + to a 2020 ultra to get dolby vision/ atmos in ever app instead of just some.
it seems like every couple hrs the screen drops to just white pixelated screen. 3 times I have just unplugged the HDMI but once the unit completely rebooted.
new HDMI cable, the unit is connected to a nakamichi soundbar. I have an LG 4k disc player connected to it as well that does not have this issue. wired connection currently.
I have seen that other people on the web may be having this issue but have seen no fix. I looked in advanced setting and there is an auto adjust display refresh rate this is off and I have seen posts saying to turn it off.
Nakamichi sound bar site says stet it to on but have heard some apps are not compatible. could also try wireless connection but not sure that would do anything.
okay so its the 4K hdr setting switched through the soundbar. the roku will test the setup say its okay but I get random dropouts. I guess I will have to call nakamichi I am using the setting they say work but who knows.
LG 4k disc player was acting up at first but ordered new HDMI's all around with 18gps bandwidth and that seemed to have fixed its issue.
the picture and sound with dolby vision an atmos are great but seems like all the variables and manufactures hardware make it a PITA to set up.
switched everything to the TV and audio to sound to ARC but get horrible lipsync on dolby content. It like problem whack a mole ha ha. switch to PCM it removes the lag but lose the fact that the soundbar recognizes it as atmos.
podering just finding a good receiver and atmos speakers.
I put firmware 35 on it. I have a ticket in with them. I have it very repeatable now. the ultra runs for hours in 4k UHD. Drops every 15-45 min in 4k HDR hooked to the soundbar. Hooked to my tv it went 6-8 hrs yesterday no issue. Its not bad in normal 4k but my adult onset autism just wanted everything to work ha ha.
I bought it for the HDMI inputs and it would not deal with my satellite box at all so I waiving on going with a receiver and speakers. has 3HDMI inputs but they seem not as robust my old yamaha receiver switching. It would not support HDR so that was why I was upgrading.