Microsoft
MicrosoftThanks for the reply. I have now submitted my problem via Windows Feedback Hub (screenshot attached). However, that system did not assign a "bug number". It did give me an https://aka.ms/_______ link but that opens in my own FH app so I'm not sure that you can use it or that it's safe to post.
To avoid any go-arounds, I'm duplicating my report text here:
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Windows 10 Pro x64 with AMD Ryzen CPU on MSI Creation x570 mobo with Realtek HD Audio; GTX 1080ti graphics card. All (and I mean all) drivers up to date including chipset, gfx etc.
When I updated Windows from v1909 to v2004 on 24 Aug, speaker output audio began to "buzz". Any volume spike on the sound would break into a buzz, which would stop after ~1 sec but recur on the next volume spike. Normal speech patterns would do this, and all Windows system sounds etc. Oddly, this was not heard on Bluetooth audio.
This is reported by others and I found guidance on setting Message Signaled Interrupts instead of IRQs. But doing this for the audio driver did not help. Reverting to Windows v1909 cured the problem. However, that broke a crucial 2-factor auth app so I don't want to simply try v2004 again.
I'm quite worried long-term unless MS can find and fix something here.
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FH report - Win v2004 corrupts audio
