I have a Hisense 55R6107 that has been connected to a Win10 computer with NVIDIA card for almost a year now with now issues. The TV updated software on Dec 20th at 258 am and not I get picture and now sound on this input.
The HD audio device in Win10 no longer exists, if i go to HDMI setting in the television and move it from Auto to Standard the audio device appears on the computer but no sound comes from the TV even when windows appears to be sending it, and rebooting the computer makes it disappear again.
Seems like something in the last update has broken audio on HDMI from win10 computers with NVIDIA cards.
The video from the computer is perfect on the TV but the audio is gone.