I bought a new LG 55UH850V 4K HDR 3D TV yesterday, and it seems the Xbox One S is having some 3D display troubles, as well as problems playing back 3D Blu Ray discs.
In the Advanced Video Settings page, I have my Xbox One S set to support 4K, and HDR (along with 50Hz, and 24fps). The 4KTV capabilities are shown by my console to be fully supported in terms of 4K, HDR, and various frame rates and resolutions etc.
My old set was a 3d Full HD 1080p Panasonic plasma TV, and the "Allow 3D" check box was checked in the Advanced Video Settings page, 3D capability was detected by the console, and I was able to play back 3D Blu Ray discs with no issue.
However with my new 4K 3D TV, with the Xbox One S set to 4K output, checking the "Allow 3D" checkbox reports that my TV does not support 3D? It does, and it supports 3DBD frame packed format too, as well as side by side, and top over bottom formats!
My old Panasonic 3D BluRay player (that I happen to still have handy), plays back 3D Bluray discs no problem on the new TV. Starting playback of a 3D Bluray results in my new showing it has detected a 3D signal, and switches automatically to 3D mode.
On the Xbox One S, it think my TV doesn't support 3D, so 3D BluRay playback does not work.
There's more to this though, as if I change my Xbox One S so that it outputs 1080p, instead of 4K (by disallowing 4K in the Advanced Video Settings), and if I then check the "Allow 3D" checkbox, the Xbox One S reports that my TV is capable of supporting 3D (it also temporarily switches my TV to 3D during it's check)?
Eh? So when the Xbox One S is outputting 4K it can't detect 3D support on my TV, yet when my Xbox One S is set to output 1080p video, it can detect 3D support?
However, it's still not that simple, and I still can't play 3D BluRay discs on my new LG TV.
So if I have my Xbox One S set to 1080p output, check the "Allow 3D" checkbox in the "Advanced Video Settings" page, inserting a 3D BluRay disc loads the BluRay Player app, but still doesn't play the disc in 3D. Nor does the BluRay Player app switch my TV
to 3D mode (though I have seen it switch the TV to 3D on the odd occasion). Regardless the discs do not play in 3D!!
Something isn't right here, as my Pansonic 3D BluRay Player works just fine with my new LG TV.
Maybe add an option to override the 3D check, and just let the user tell the Xbox One that a 3D TV is attached? Though not sure that will fix the issue of 3D discs not playing back in 3D.
I've logged two reports from my console, the first yesterday to detail 3D capability not being detected on my 4K TV, and then another report today to record details about how switching the console to 1080p made it detect my 3D TV correctly etc.
P.S. There is an AVS forum where another user is reporting the exact same problem. It's from that forum I saw the tip about changing the output resolution of the Xbox One S to 1080p in order for it to detect the 3D TV properly. He was also using an LG TV is that's any help.