[wesk05]

Before I get back to LE, some background on my Epson 5040UB and what has worked and not worked, at least w/nVidia Shield TV & Zidoo X9S players. I know Epson 5040UB supports 4K "12-bit" up to 30Hz, and anything above in 8-bit only. I say "12-bit" instead of "10-bit" as that's what the PJ likes or maybe just sees. I never see it getting or showing 10-bit, always 8- or 12-bit only. With my nVidia Shield, I've forced the resolution to [email protected] (@23.976/24/30 also work) as it's the only way the Shield allows me to then pick 4:2:2 12-bit Rec2020 in the HDMI advanced menu...

So, now back to the Tanix S912 box and LE. I set the Kodi UI to 4K@24[/b][/url] (also tried 23.976, 29.970 & 30), then ran variations of these, rebooting each time...

But, I still get 8-bit playback with any of the above, with HDR however.

  Shield has only 12-bit mode for YCbCr 4:2:2 which is what it should be by HDMI spec. You have to zero pad 8-bit/10-bit content to 12-bit. 10-bit is available only for 4K 50/60Hz.

I thought that in Amlogic LE if you reboot, it would just default to 8-bit if you don't have a startup script. I don't reboot after the attr command. I think what will work with your projector is 444 10-bit or 12-bit. May be 422 also, but I have seen folks report issue with 422.