linux-kernel - [regression] Regular "cracks" in HDMI sound during playback since backport to 6.1.y for 92afcc310038 ("ALSA: hda: Conditionally use snooping for AMD HDMI")

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Message-ID: <ZvgCdYfKgwHpJXGE@eldamar.lan>
Date: Sat, 28 Sep 2024 15:19:49 +0200
From: Salvatore Bonaccorso <carnil@...ian.org>
To: Takashi Iwai <tiwai@...e.de>, Jaroslav Kysela <perex@...ex.cz>,
	linux-sound@...r.kernel.org
Cc: Eric Degenetais <eric.4.debian@...batoulnz.fr>,
	linux-kernel@...r.kernel.org, stable <stable@...r.kernel.org>,
	regressions@...ts.linux.dev, Sasha Levin <sashal@...nel.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: [regression] Regular "cracks" in HDMI sound during playback since
 backport to 6.1.y for 92afcc310038 ("ALSA: hda: Conditionally use snooping
 for AMD HDMI")

Hi

In downstream Debian we got a report from  Eric Degenetais, in
https://bugs.debian.org/1081833 that after the update to the 6.1.106
based version, there were regular cracks in HDMI sound during
playback.

Eric was able to bisec the issue down to
92afcc310038ebe5d66c689bb0bf418f5451201c in the v6.1.y series which
got applied in 6.1.104.

Cf. https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1081833#47

#regzbot introduced: 92afcc310038ebe5d66c689bb0bf418f5451201c
#regzbot link: https://bugs.debian.org/1081833

It should be noted that Eric as well tried more recent stable series
as well, in particular did test as well 6.10.6 based version back on
20th september, and the issue was reproducible there as well.

Is there anything else we can try to provide?

Regards,
Salvatore