All of lore.kernel.org
 help / color / mirror / Atom feed
From: Clemens Ladisch <clemens@ladisch.de>
To: Tobias Klausmann <klausman-alsa@schwarzvogel.de>
Cc: alsa-devel@alsa-project.org
Subject: Re: Audinst HUD-mx2 covertly muting itself
Date: Thu, 31 Oct 2013 16:53:57 +0100	[thread overview]
Message-ID: <52727D15.90907@ladisch.de> (raw)
In-Reply-To: <20131031101137.GA75354@skade.schwarzvogel.de>

Tobias Klausmann wrote:
> While the device works right in principle, every time an app
> closes the device, it mutes itself (or crash, this may be a Hw
> problem). There is no indication of the broken state in the mixer
> displays of alsamixer or alsamixer-gui, and amixer output does
> not indicate any change, either (see below).

The USB Audio Specification defines a mechanism with which a device
could notify the PC of changes in mixer controls.  However, this device
does not have such a mechanism, so this looks like a firmware bug.

Does this happen for both the analog and digital outputs?

> The vendor does not officially support anything but Windows

Does it work correctly in Windows without any vendor-supplied driver?


Regards,
Clemens

  parent reply	other threads:[~2013-10-31 15:54 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-10-31 10:11 Audinst HUD-mx2 covertly muting itself Tobias Klausmann
2013-10-31 10:28 ` Tobias Klausmann
2013-10-31 15:53 ` Clemens Ladisch [this message]
2013-10-31 16:15   ` Tobias Klausmann
2013-10-31 16:25     ` Clemens Ladisch
2013-11-01 13:58       ` Tobias Klausmann

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=52727D15.90907@ladisch.de \
    --to=clemens@ladisch.de \
    --cc=alsa-devel@alsa-project.org \
    --cc=klausman-alsa@schwarzvogel.de \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.