Integrated speakers stop working unless audio settings are open

[CawaLimon]

I've noticed that when I use the internal speakers on my X1C6, sound will eventually stop working. Resetting the audio daemon does not resolve the issue. The issue only resolves once I open audio settings and go to the input tab. If this settings window remains open, the issue does not reappear. However, if I close the settings window the issue will reoccur a few minutes later.

Has anyone else seen this before? Not sure is this is a MacOS issue (Monterey 12.5.1) or an OC issue. Otherwise the speakers work and sound great (as well as they can for this gen of X1), so I don't think it's an OC issue. I've tried other layout IDs and they either work poorly or not at all.

[kushwavez]

Noticed similar issue as well on my setup using Clover. The internal audio stops working randomly. A quick close-open lid solves this.

I think it’s an AppleALC bug

[erdemoney]

I think this issue was supposedly fixed in AppleALC, but I'm still experiencing it as well. It's been known about for a while.

[savvamitrofanov]

Same problem on T490. This is hardware issue on shit-nova devices caused by SMI handlers and reproduced on power source change (AC/BAT).

[Einstonoy]

Same for me, only recover after setup Configuration been open. However, for me my X1Y3 sometimes seems recover automatically.

[Einstonoy]

I use ID of 11 and 21, 21 seems better.

[Einstonoy]

Same problem on T490. This is hardware issue on shit-nova devices caused by SMI handlers and reproduced on power source change (AC/BAT).

It seems reasonable, I just unplug the AC power.

[dclive]

Are you running AppleALC 1.77?

[Einstonoy]

I run 1.7.8, you mean this version could work better?

[Einstonoy]

Eg: I just unplug AC power, then the audio as expected die, however, as I mentioned, it recover automatically after around 1min or several mins.

[dclive]

1.78 should be fine too; nvm.

[Einstonoy]

well, I now believe it due the 'shit-nova devices caused by SMI handlers and reproduced on power source change (AC/BAT)' mentioned above. But it seems recover after I turn off the audio file after like 1 min. The symptom for me is exactly the same after change power supply (specifically unplug AC power), and running an audio included file (like '.mp3', '.rmvb' or any other media files) would induce this sudden flaw.
It seems two solutions for me: pause the running file and play it after around 1min or pull the setting panel on line (specifically the microphone panel).

[Einstonoy]

however, the former one in the solution would be relative good or maybe a rapid lid off and open would work too which I may try later. the second online microphone panel solution seems bad cause audio flaw appear again after I close the panel.