It might be a firmware/HW problem. #BMAX
I won't bother the Alsa project for this. I noticed that the audio codec SN6140 is used in recent Thinkpads as well (some issues with headset also). If it works fine with continuous audio streams, it's not the case with podcast/chat audio: sound is interrupted sporadically in D0 state (on Win 11 25H2, very noticeable, exactly the same problem).
Here a workaround: play an inaudible sound in the background -> problem solved.
#Senary #Linux #Alsa #SN6140

