[brazen1]

I updated the nVidia Display Port Firmware today even though I don't use the DP.  Easy, quick, no problems.  http://www.nvidia.com/object/nv-uefi-update-x64.html

I also installed driver v.398.11 and was again disappointed.  As with all previous driver versions beginning with v.390.65 https://forum.kodi.tv/showthread.php?tid...pid2721301 , There is No auto switch from stereo to multiple speaker setup in Windows Audio considering if AVR state is On or Off unlike previous drivers before this bug was introduced.

What does this mean?  Many things but most specifically:  AAC audio will only output as stereo (2.0) and not multichannel as it should (5.1, 6.1, 7.1).  AAC audio is the most common format used when transcoding to x265 HEVC.  Toggling the Stereo vs Multichannel setting in Windows Audio Properties remedies this but who wants to try to remember to do this each time and/or manually do anything?  Leaving the setting at (5.1 or 7.1) is fine as long as your AVR is always ON.  Should you turn it off (I often do when no Hi Def audio is needed and stereo from my panel speakers will suffice saving needless wear and tear on my AVR), Web based video like youtube will error and not playback at all, not even video.  Again, you can remedy by manually flipping settings back again in Windows Audio Properties.  Personally, I have no desire to flip settings around simply because I turned my AVR on or off nor do I want to discover I just listened to a 7.1 rip in stereo because I forgot to flip settings around.  Reverting to driver v.385.28 fixes all of this.... before the problem was introduced.  Sigh...