From mboxrd@z Thu Jan 1 00:00:00 1970 From: Harald Schuster Subject: poll blocked after prepare state Date: Fri, 22 Jun 2018 13:29:21 +0000 Message-ID: <20180622132921.Horde.VdiLUhoIz-J3ymTOC0qkzL5@webmail.technikum-wien.at> References: <20180621104224.Horde.WJU_RKtLDLoAGMPfW3FREnA@webmail.technikum-wien.at> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; Format="flowed"; DelSp="Yes" Content-Transfer-Encoding: 7bit Return-path: Received: from bifrost.technikum-wien.at (bifrost.technikum-wien.at [195.245.225.25]) by alsa0.perex.cz (Postfix) with ESMTP id A60962670D7 for ; Fri, 22 Jun 2018 15:29:22 +0200 (CEST) Received: from mail.technikum-wien.at (groupware.technikum-wien.at [10.127.0.250]) by bifrost2.technikum-wien.at (Postfix) with ESMTPS id 54A0FA0F for ; Fri, 22 Jun 2018 15:29:21 +0200 (CEST) In-Reply-To: <20180621104224.Horde.WJU_RKtLDLoAGMPfW3FREnA@webmail.technikum-wien.at> Content-Disposition: inline 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: alsa-devel@alsa-project.org List-Id: alsa-devel@alsa-project.org I found out that an underrun occours and so the pcm_prepare function for pcm_direct is called and then pcm_start_dshare is called. Both functions returns without any error but the playback path is blocked in the snd_pcm_wait_nocheck function. I read that there was an similar problem before in the group but i didn't found any solution. Is this a problem in the driver and how can i go forward to fix it. The codec is a tlv320aic3x-audio. Thanks for your help. best regards Harald