Originally Posted by Stephen Warren
It looks like you're using driver 195.36.31. There have been a number of changes related to audio-over-HDMI since then. Can you please try driver 256.35 and see if it makes any difference?
In the meantime, I'm working on tracking down HW to try to reproduce this.
Thanks, I hope you can (reproduce the problem and) fix it when you get the HW.
I did initially start with 256.35 but had some issues with tearing so a went back to 195 series (with which I still get some tearing but that is another issue). I retested with 256.35, unfortunately this does not improve the situation, still no audio from HDMI. I've added a nvidia bug report for good measure.
If you need more info or other tests performed...