From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sinan Akman Subject: Re: Wandboard Quad - SPDIF issue, no sound Date: Thu, 26 Jun 2014 14:56:26 -0400 Message-ID: <53AC6CDA.7090503@writeme.com> References: <53A86CC5.2060204@dewberryfields.co.uk> <53A90D98.3050000@writeme.com> <53A991F4.9070905@dewberryfields.co.uk> <53AA0E8E.6030508@writeme.com> <53AAD9D3.2000107@dewberryfields.co.uk> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; Format="flowed" Content-Transfer-Encoding: 7bit Return-path: Received: from walmailout06.yourhostingaccount.com (walmailout06.yourhostingaccount.com [65.254.253.53]) by alsa0.perex.cz (Postfix) with ESMTP id 40AC52650CC for ; Thu, 26 Jun 2014 20:56:32 +0200 (CEST) Received: from mailscan07.yourhostingaccount.com ([10.1.15.7] helo=walmailscan07.yourhostingaccount.com) by walmailout06.yourhostingaccount.com with esmtp (Exim) id 1X0EqV-0003J9-8Q for alsa-devel@alsa-project.org; Thu, 26 Jun 2014 14:56:31 -0400 In-Reply-To: <53AAD9D3.2000107@dewberryfields.co.uk> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: alsa-devel-bounces@alsa-project.org To: Michael Howard Cc: alsa-devel@alsa-project.org List-Id: alsa-devel@alsa-project.org Hi Mike > One obvious difference is that the Wandboard uses 'snd-soc-dummy-dai'. What does the other board show ? > > I'll get a scope on the job this evening, is there anything inparticular > I should be looking for? I am not an expert on spdif electrical levels but at one one point I was explained that professional grade cd players might have higher signal level (as I was using spdif as input). So perhaps you can compare the signal levels of the two different boards and see if there is a visible difference there. Also, I don't read the mailing list regularly so you might want to cc your replies to me if you want me see them sooner. Hope this helps Sinan Akman