Hi all,

I have an Intel NUC with the 4th Gen Intel Core i5. It's running the latest public (not Insider) release of Windows 10 x64, with pretty much nothing but software for a HTPC (VLC, MPC-HC, etc). It is using Intel HD Graphics 5000 driver 20.19.15.4531 and Intel Display Audio driver 6.16.0.3197.

I have two issues. I do not think they are related... but who knows...

First, the system is connected to a Pioneer receiver. When I turn my TV and receiver off, the NUC stays powered on, usually. The problem is that every single time I power on the receiver, I have no audio, even though Intel HDMI Audio is detected and shows playback meters in Playback Devices. Disabling/Enabling the device doesn't fix. The only thing that works is rebooting the system. This didn't used to be a problem, but it has been for so long, I can't remember when it did work. I guess when powering the receiver off, the "HDMI audio hardware" is unmounted and then reinstalled when powered on. But, no audio on detection can't be normal. Any ideas what I need to do? I tried HDMI adapters on both the mDP and the mHDMI ports.

Secondly, every once in a while, the system is going to sleep even though sleep is completely disabled in BIOS and set to NEVER in Windows.

BIOS and drivers are all up to date according to the Intel Update Utility.

I'm no newb to Windows 10, but these two issues are driving me insane.