https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=175688

Kevin Zheng <[email protected]> changed:

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--- Comment #7 from Kevin Zheng <[email protected]> ---
There seem to be a few different but possibly related errors here, but I'm
posting here because others seem to have posted about my particular error.

I'm on 15.0-RELEASE-p2 GENERIC amd64 and get the following message:

hdacc1: Unexpected unsolicited response with tag 63: ffffffff

/dev/sndstat shows this output is <Intel Kaby Lake (HDMI/DP 8ch)>

I can reliably trigger this by putting the display connected to this DP output
into DPMS suspend. This HDA message appears when the display comes out of DPMS
suspend.

I don't use the DP audio output so cannot comment about whether the audio
output keeps working or not.

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