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From: Takashi Iwai <tiwai@suse.de>
To: Michael Ralston <michael@ralston.id.au>
Cc: Thorsten Leemhuis <regressions@leemhuis.info>,
	alsa-devel@alsa-project.org, regressions@lists.linux.dev,
	stable@vger.kernel.org, Jaroslav Kysela <perex@perex.cz>,
	Takashi Iwai <tiwai@suse.com>
Subject: Re: USB-Audio regression on behringer UMC404HD
Date: Tue, 03 Jan 2023 16:13:10 +0100	[thread overview]
Message-ID: <87bknfr6rd.wl-tiwai@suse.de> (raw)
In-Reply-To: <CAC2975+cUqiFC0LO-D-fi0swH+x=_FMuG+==mhg6HH4pc_YDRA@mail.gmail.com>

On Tue, 03 Jan 2023 16:05:18 +0100,
Michael Ralston wrote:
> 
> On Wed, 4 Jan 2023 at 00:38, Takashi Iwai <tiwai@suse.de> wrote:
> >
> > Thanks; that's helpful.
> >
> > Could you try to revert the commit
> > 9902b303b5ade208b58f0dd38a09831813582211
> >     ALSA: usb-audio: Avoid unnecessary interface change at EP close
> as a blind shot?
> >
> > Also, there has been a series of fixes for other issues, and it might
> > be worth to try as well:
> >   https://lore.kernel.org/r/20230102170759.29610-1-tiwai@suse.de
> >
> 
> I built 3 kernels: one with the reverted commit, one with the patches
> you linked, and one with both. These builds were based on 6.1.2.
> 
> None of them worked. Also, even though I continued to boot with
> snd_usb_audio.dyndbg=+p, none of the kernel logs showed the debug
> messages that the other versions did. I'm baffled why this is.

That's weird.  Is snd_usb_audio driver bound with the device at all?
That is, does it appear in /proc/asound/cards?


Takashi

  reply	other threads:[~2023-01-03 15:13 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-01-02 17:29 USB-Audio regression on behringer UMC404HD Michael Ralston
2023-01-02 17:43 ` Michael Ralston
2023-01-03  9:07 ` Thorsten Leemhuis
2023-01-03  9:33   ` Takashi Iwai
2023-01-03 13:10     ` Michael Ralston
2023-01-03 13:38       ` Takashi Iwai
2023-01-03 15:05         ` Michael Ralston
2023-01-03 15:13           ` Takashi Iwai [this message]
2023-01-03 15:14             ` Michael Ralston
2023-01-03 15:19               ` Michael Ralston
2023-01-03 15:21               ` Takashi Iwai
2023-01-03 15:31                 ` Michael Ralston
2023-01-03 16:03                   ` Takashi Iwai
2023-01-03 19:09                     ` Michael Ralston
2023-01-03 19:24                       ` Michael Ralston
2023-01-03 19:27                         ` Michael Ralston
2023-01-03 19:29                           ` Michael Ralston
2023-01-04  8:16                             ` Takashi Iwai
2023-01-04 14:22                               ` Michael Ralston
2023-01-04 14:42                                 ` Takashi Iwai
2023-01-04 14:47                                   ` Michael Ralston
2023-01-04 14:54                                     ` Takashi Iwai
2023-01-04 14:56                                       ` Michael Ralston
2023-01-04 15:17                                         ` Takashi Iwai

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