Stickan

Hi, problem solved! After switching off my DM900uhd, Vu+Ultimo 4K and my new Yamahareciever at the same time and waiting som 15 minutes or so, Both boxes working fine  2160p.

Thanks for your interesst all of you!

As 2160p works fine on DM900uhd OpenPLi Japhar version and my Yamaha reciever and Philips TV (brand new) I am rather sure that the problem is to find on my Vu+Ultomo 4K, not in Yamaha reciever or Philips TV.

I will try some other img on Vu+Ultimo 4K and test.

Thanks for good and not so very good answers!

As I wrote: TV Philips is new. Works fine together with my DM900uhd 2160p.

Vu+Ultimo 4K  no picture 2160p, but ok with 1080p.

I have swiched cables just to be sure no problem with them.

I am running OpenPLi 8.1 release updated 2020-02-20 on Vu+Ultimo 4K box. DM900 with OpenPLi Japhar version.