Hello,
i bought a Zotac CI327 with DP and HDMI. On HDMI i connected a 4k Samsung TV with a resolution 3840x2160 60.00Hz. On the DisplayPort i connectet my AVR,which does not support 4k, withan DP->HDMI Converter.. I need this only for HD-Audio such as DTS-HD or HD-Master. On my old CI321 all works perfect., but on the CI327 i get no sound through HDMI. xrandr says disconnected, but the AVR is power on. Can someone help me please. 
