VoodooHDA 2.8.8 from Sourceforge.net comes in an installer package. It installs to /S/L/E. It seems to work for both HDMI and Analog audio on my system, even after 3 reboots. So if anyone else is interested in having both analog and HDMI audio working at the same time, test this out by first uninstalling any other VoodooHDA kext from /L/E or wherever else you may have installed it. Empty the trash and reboot. Then double click the 2.8.8 installer pkg. and go through the install routine.
You won't need to use Kextbeast or any other kext installer. Reboot again and see if HDMI audio and your analog audio jacks are working. Report back here what happens with your system, which graphics card you are using or whether you are using onboard DP (HD4000) straight to a monitor with speakers or adapted to HDMI for a television. Would like to hear what your experiences are with this. I've attached the same pkg below for your convenience. You can also download it directly from sourceforge.net.
https://sourceforge.net/projects/voodoohda/?source=typ_redirect
I had previously tried installing 2.8.8 from Multibeast but it failed to work. It may be that it installs the 2.8.8 kext to /L/E instead of /S/L/E. I'm not entirely sure why it fails. If you install the version from Sourceforge you'll need to install the V.HDA pref panel separately as that package installer doesn't do that for you.
NOTE: If you have already installed
V.HDA 2.9.0 and have working
HDMI audio you can stay with that
. If you never use the analog audio onboard there's no reason to go back to 2.8.8.
Since only HDMI audio works when the 2.9.0 Voodoo HDA kext is installed I'm recommending that all new installs of Sierra use the 2.8.8 kext instead. That way you will have the choice of either the onboard audio jacks or the use of the HDMI audio. The main install guide has been changed to reflect this. 2.9.0 installed to /L/E with Kextbeast can still be used if you only want HDMI audio.