From mboxrd@z Thu Jan 1 00:00:00 1970 From: Takashi Iwai Subject: Re: hda-intel: ALC1150 (alc882 patch) produces constant noise on line-out port Date: Wed, 01 Jun 2016 22:03:20 +0200 Message-ID: References: Mime-Version: 1.0 (generated by SEMI 1.14.6 - "Maruoka") Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mx2.suse.de (mx2.suse.de [195.135.220.15]) by alsa0.perex.cz (Postfix) with ESMTP id 11AF52652AC for ; Wed, 1 Jun 2016 22:03:21 +0200 (CEST) In-Reply-To: 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: "Maximilian.ammann" Cc: alsa-devel@alsa-project.org List-Id: alsa-devel@alsa-project.org On Wed, 01 Jun 2016 20:23:58 +0200, Maximilian.ammann wrote: > > Hello, > > I experienced weird behaviour on my "ASUS MAXIMUS VII RANGER" which has > a realtek soundcard with the ALC1150 codec. The problem is that if the > patch_882 is enabled I get a constant noise on the line-out port. > I started experienced and noticed that when using the generic model the > problem disappeared. Therefore the problem also disappeared when > removing the folowing line in sound/pci/hda/patch_realtek.c: > > HDA_CODEC_ENTRY(0x10ec0900, "ALC1150", patch_alc882), > > I really would like to know whether this behaviour is expected or how I > (myself) could fix it by creating a patch. > > alsa-info.sh output: > Without alc882 patch: > http://www.alsa-project.org/db/?f=3fdf926c64a02273e0e68035eeb94282ca44a > 7df > With alc882 patch: > http://www.alsa-project.org/db/?f=336755aab10811bb0af5440dbda7b9cda3d9b > 116 > > Thansk in advance, if possible it would be awesome if you could provide > me some tips since I really would like to fix it myself as my very > first patch. Did you try to turn off "Loopback Mixing" mixer switch? This often stops such a noise. Takashi