From mboxrd@z Thu Jan 1 00:00:00 1970 From: Clemens Ladisch Subject: Re: Specs available for Sweex External 5.1 with digital in/out USB 2.0 / C-Media CM6207 Date: Thu, 05 Jun 2008 12:27:46 +0200 Message-ID: <4847BFA2.70202@fastmail.net> References: <4845A420.10804@slagter.name> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from out1.smtp.messagingengine.com (out1.smtp.messagingengine.com [66.111.4.25]) by alsa0.perex.cz (Postfix) with ESMTP id 0B37824604 for ; Thu, 5 Jun 2008 12:27:56 +0200 (CEST) In-Reply-To: <4845A420.10804@slagter.name> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: alsa-devel-bounces@alsa-project.org Errors-To: alsa-devel-bounces@alsa-project.org To: Erik Slagter Cc: alsa-devel@alsa-project.org List-Id: alsa-devel@alsa-project.org Erik Slagter wrote: > These are the actual issues (so far, I didn't yet test it exhaustively): > > - using 2 channel output the sound is garbled; it looks like the > "wrong" 2 channel alt setting is used (output of > /proc/asound/card?/stream0 on request), 4/6 channel output is OK though. > - some high squeeking noise although C-Media claims the IC to be > high-end (or maybe their definition of high-end differs from mine ;-)) > - all outputs are labelled "speaker 1" > - only two outputs have a mute knob, the others cannot be silenced in > any way, only turned down > - one of the two outputs with the mute knob doesn't appear to do > anything (or maybe it's the sp/dif output?) > - the other (with mute) controls the front output > - the others (without mute) don't seem to do anything at all Please show the output of "lsusb -v" for this device. Regards, Clemens