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From: Takashi Iwai <tiwai@suse.de>
To: Mike Oliphant <oliphant@nostatic.org>
Cc: alsa-devel@alsa-project.org
Subject: Re: Support for NUX MG-300 USB interface
Date: Mon, 18 Jan 2021 08:43:17 +0100	[thread overview]
Message-ID: <s5hr1mik7vu.wl-tiwai@suse.de> (raw)
In-Reply-To: <CAHXb3bdk71ivJUp9HBRccDvd8SD2F1uFdsC_FxUjhh5zpcQobQ@mail.gmail.com>

On Sun, 17 Jan 2021 19:56:01 +0100,
Mike Oliphant wrote:
> 
> I recently got a NUX MG-300 USB guitar fx interface with high hopes that it
> would work in Linux. It is supposed to be class-compliant, and works in iOS
> and macOS without a driver.
> 
> Unfortunately, while it is recognized as a USB audio device by Linux, it is
> not working.
> 
> The core issue seems to be that "stream0" reports no playback rates. dmesg
> also shows errors, including "__uac_clock_find_source(): selector reported
> illegal value".
> 
> Any help identifying the issue would be much appreciated. I have some
> experience troubleshooting the USB audio kernel code and am happy to try
> doing so if I can get a nudge in the right direction.
> 
> Output from "stream0", dmesg, and lsusb follows.

Did you try the latest 5.11-rc kernel?  There have been lots of
changes in USB-audio and this might work better there.

If it still doesn't work with 5.11-rc, please try to enable the debug
option, e.g. boot with snd_usb_audio.dyndbg=+p boot option, plug the
device, and get the kernel logs (at plugging and during the audio
operations).


thanks,

Takashi

  reply	other threads:[~2021-01-18  7:44 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-17 18:56 Support for NUX MG-300 USB interface Mike Oliphant
2021-01-18  7:43 ` Takashi Iwai [this message]
2021-01-18 16:33   ` Mike Oliphant
2021-01-18 17:54     ` Mike Oliphant
2021-01-18 19:19       ` Takashi Iwai
2021-01-18 21:15         ` Mike Oliphant
2021-01-18 21:59           ` Takashi Iwai
2021-01-19  0:26             ` Mike Oliphant
2021-01-19  9:05               ` Takashi Iwai
2021-01-19 17:40                 ` Mike Oliphant
2021-01-20 14:33                   ` Takashi Iwai
2021-01-20 21:17                     ` Mike Oliphant
2021-01-20 21:38                       ` Takashi Iwai
2021-01-20 21:47                         ` Mike Oliphant
2021-01-21 19:04                           ` Mike Oliphant
2021-01-21 20:18                             ` Mike Oliphant

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