I am new to the OSMC community, and have recently upgraded to a setup consisting of:
Yamaha RX-V685 AVR
Samsung UE75 RU7105
The 1920x1080x60 GUI is working fine, so are 1920x1080x24 videos (also detected as 24p on the TV).
The problem arises whenever I try playing 4k movies. It seems like the AVR is not able to negotiate(?) the resolution with OSMC/Kodi (the sound also disappears).
I did get this working by plugging the same HDMI-cable that usually goes from AVR to TV directly from OSMC to TV, and then plug it back in to the receiver after. But after a reboot of OSMC the same problem appears.
Logs can be found here: http://paste.osmc.tv/lefewahego
This is after trying to play a 4k movie (that was previously working with the “trick” I did).
The HDMI-cable between OSMC and AVR is the original one that followed the OSMC, while the HDMI-cable between AVR and TV is of an older (and probably cheaper) model. So this cable has been my main suspect, and I will try replacing it as soon as I get my hands on one, but it seems a bit odd that the very same cable works fine if I plug it directly between OSMC and TV?
“Adjust display refresh rate” is set to “On start/stop”, and seems to be working, just not for 4k.