Brand new to LE. Used to run FireTv. I too am not able to stream anything in 4K. When I change resolution it either goes Black or Green screen. I had no problem steaming 4K on Fire TV. Any suggestions would be appreciated. Thanks!
Im running LiberELEC (Community)
Version 7.95 Beta
Architecture S905.arm
Kodi 17.1-RC1 Esturary
Currently have resolution set at 1920X1080n@24 Hz