From mboxrd@z Thu Jan 1 00:00:00 1970 From: Clemens Ladisch Subject: Re: ice1712 and the delta 1010 Date: Thu, 26 Aug 2010 15:02:04 +0200 Message-ID: <4C7665CC.5080302@ladisch.de> References: <20100826065854.519ee1d3@debussy> 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 B36A910382D for ; Thu, 26 Aug 2010 15:02:02 +0200 (CEST) In-Reply-To: <20100826065854.519ee1d3@debussy> 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: David Santamauro Cc: "alsa-devel@alsa-project.org" List-Id: alsa-devel@alsa-project.org David Santamauro wrote: > Since upgrading my audio PC to 64-bit, Hardware or software upgrade? > the delta 1010 analog inputs emit a constant 'hiss' -36 -30dB. Analog > outputs and digital ins and outs are fine. The delta 1010 from > a hardware perspective is fine as I tested it on the same pc hardware > under windows7 64-bit. In theory, this sounds like a driver bug. > So far, I have tested it in a 32-bit fedora, 32-bit windows vista and > 64-bit windows7 all successfully. This problem arises only in 64-bit > fedora. Does the 32-bit Linux use the same driver version? If yes, then it's possible that the 32-bit and 64-bit kernels configure the PC differently; for example, there might be noise on the power line due to a different kind of power management. Regards, Clemens