From: bugtrack@alsa-project.org
To: alsa-devel@alsa-project.org
Subject: [ALSA - driver 0000712]: Setting <4 channels in surround40 fails
Date: Tue, 7 Dec 2004 18:51:54 +0100 [thread overview]
Message-ID: <3bf228aebbb877352433a49d377d0e02@bugtrack.alsa-project.org> (raw)
A NOTE has been added to this issue.
======================================================================
<https://bugtrack.alsa-project.org/alsa-bug/view.php?id=712>
======================================================================
Reported By: darkbrain
Assigned To:
======================================================================
Project: ALSA - driver
Issue ID: 712
Category: PCI - cs46xx
Reproducibility: always
Severity: minor
Priority: normal
Status: new
Distribution:
Kernel Version:
======================================================================
Date Submitted: 12-07-2004 18:36 CET
Last Modified: 12-07-2004 18:51 CET
======================================================================
Summary: Setting <4 channels in surround40 fails
Description:
If you try
alsa-lib/test/pcm -D surround40:0
You obtain: Channels count (1) not available for playbacks: Invalid
argument
But we have 4 channels!
I've tried to find the problem into the sources without luck :(
======================================================================
----------------------------------------------------------------------
tiwai - 12-07-04 18:42
----------------------------------------------------------------------
This is not a bug.
surround40 is for 4 seprated channels.
If you want to duplicate 2-channel stereo signal to 4-channels, try the
CVS version. It can have a new mixer control 'Duplicate Front'.
Otherwise, you can do it via asoundrc (see bug
https://bugtrack.alsa-project.org/alsa-bug/view.php?id=617).
----------------------------------------------------------------------
darkbrain - 12-07-04 18:51
----------------------------------------------------------------------
BTW with cmipci driver it's possible. There is an incompatibility with
openal witch try to open 2 channels without luck.
Issue History
Date Modified Username Field Change
======================================================================
12-07-04 18:36 darkbrain New Issue
12-07-04 18:42 tiwai Note Added: 0002757
12-07-04 18:51 darkbrain Note Added: 0002759
======================================================================
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next reply other threads:[~2004-12-07 17:51 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-12-07 17:51 bugtrack [this message]
-- strict thread matches above, loose matches on Subject: below --
2005-05-31 16:03 [ALSA - driver 0000712]: Setting <4 channels in surround40 fails bugtrack
2005-03-22 14:01 bugtrack
2005-03-19 17:17 bugtrack
2005-03-19 15:34 bugtrack
2004-12-07 17:59 bugtrack
2004-12-07 17:54 bugtrack
2004-12-07 17:42 bugtrack
2004-12-07 17:36 bugtrack
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