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No HDMI Audio from Video Card
http://www.motherboards.org/forums/viewtopic.php?f=3&t=124598
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Author:  Ryn [ Thu Jul 18, 2019 4:11 am ]
Post subject:  No HDMI Audio from Video Card

Hi Guys,

It's been a long time since I posted here. Anyway, I recently purchased a new CPU/Motherboard/RAM combo, below are the specs of my current machine:

AMD Ryzen 2200G

MSI B450M Mortar

Sapphire Radeon R9 380

2x8GB Kingston Hyper-X DDR CL2400

Gigabyte 800W PSU

WD SSD Green 250GB



I'll try to be as detailed as possible. My Sapphire video card came from an old PC which has an AMD A10 and MSI motherboard as well. HDMI audio is working on the A10 but when I upgraded the moterboard/cpu with the ones mentioned above, the HDMI audio is not working on the video card and for some reason when I was installing the AMD drivers (19.5.x and later 19.7.x) the HDMI drivers is not listed during the custom install. Below is what I have done so far



1) Fresh install of Windows 10 Professional

2) Updated Windows 10 with the latest patches

3) Installed AMD 19.7.x drivers; no HDMI listed

4) Booted to Safe mode and ran DDU

5) Installed AMD 19.5.x drivers; still the same results with HDMI not listed

6) Performed the same steps and installed 19.4.x drivers but still got the same results

7) Updated the motherboard BIOS to the latest version and performed another clean install of Windows 10 Pro

8) Performed the same steps above but HDMI audio is still not working

HDMI Audio from the video card was not listed on the Sound Panel and even on Device Manager including disabled devices.

For testing purposes, I installed my Sapphire VC back on the old A10/MSI PC and the HDMI audio was working with the 19.5.x drivers.


Any ideas as to how to fix this? Any inputs will be greatly appreciated



Thank you

Author:  Ryn [ Thu Jul 18, 2019 6:20 am ]
Post subject:  Re: No HDMI Audio from Video Card

I am now able to resolve this issue, had to downgrade the BIOS from the one that shipped with it.

Author:  evasive [ Thu Jul 18, 2019 10:06 am ]
Post subject:  Re: No HDMI Audio from Video Card

Hang on, so the newer bios that shipped with the board had a bug preventing the HDMI audio from working?

Is anything documented anywhere about this?

Author:  Ryn [ Fri Jul 19, 2019 9:21 pm ]
Post subject:  Re: No HDMI Audio from Video Card

evasive wrote:
Hang on, so the newer bios that shipped with the board had a bug preventing the HDMI audio from working?

Is anything documented anywhere about this?


Yes, AMD seems to have issues with the Ryzen cpus. My mobo is a MSI B450M Morta that shipped with the BIOS 7B89v16, link below:

https://www.msi.com/Motherboard/support/B450M-MORTAR

I found this thread from MSI Forums where some folks are encountering the same problems that I have with the HDMI audio. They have this tool where you can downgrade your BIOS, I downgraded mine to 7B89v14 and the HDMI audio from my Sapphire R9 380 worked. Below is the thread for reference:

https://forum-en.msi.com/index.php?topic=302638.0

Other motherboard brands are also affected by this like Gigabyte and Asus, most users downgrade their BIOS as well to fix this issue.

Author:  Roach412 [ Tue Jul 23, 2019 8:07 am ]
Post subject:  Re: No HDMI Audio from Video Card

Jeez...that's just lazy from AMD. :roll:

-R

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