I had a problem with Spotify on my notebook, connected with HDMI to my Pioneer receiver. I’m using Windows 10 with the 10586 Build. When I wanted to play music after I paused Spotify for a couple of minutes, the music doesn’t play again.
After installing Windows 10 on my production device (with a Windows 8.1 Hyper-V VM as back-up, of course), I had an issue with the HDMI Audio of my Dell Latitude E6540 notebook. I found some topics online about setting the default format of the Audio device, such as sample rate and bit depth, but that doesn’t work for me.