From mboxrd@z Thu Jan 1 00:00:00 1970 From: Raymond Yau Subject: Re: Intel HDA & Realtek issues on ASUS G751JM Date: Sat, 13 Jun 2015 20:26:32 +0800 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mail-ob0-f182.google.com (mail-ob0-f182.google.com [209.85.214.182]) by alsa0.perex.cz (Postfix) with ESMTP id 2728826057F for ; Sat, 13 Jun 2015 14:26:34 +0200 (CEST) Received: by obpc2 with SMTP id c2so9287496obp.3 for ; Sat, 13 Jun 2015 05:26:33 -0700 (PDT) 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: Nicolae Rosia Cc: Takashi Iwai , ALSA Development Mailing List List-Id: alsa-devel@alsa-project.org > > If your specifcaion and user guide does not mention the support of surround > > 5.1 > > > > You need to find out the internal subwoofer use both channel or just left or > > right > > > > speaker-test -c4 -t wav -D hw:0,0 > > > > If you hear high frequency from subwoofer, this mean you need software low > > pass filtter > > > After removing all jacks and testing with speaker-test -c 4 -t wav -D hw:1,0 > > speaker-test 1.0.29 > > Playback device is hw:1,0 > Stream parameters are 48000Hz, S16_LE, 4 channels > WAV file(s) > Rate set to 48000Hz (requested 48000Hz) > Buffer size range from 32 to 524288 > Period size range from 16 to 262144 > Using max buffer size 524288 > Periods = 4 > was set period_size = 131072 > was set buffer_size = 524288 > 0 - Front Left > 1 - Front Right > 3 - Rear Right > 2 - Rear Left > ^CTime per period = 9.384977 > > I can hear high frequency from internal subwoofer while speaker-test > printed 3 and 2. http://colin.guthr.ie/2010/09/compiling-and-running-pulseaudio-from-git/ You can build and run using git but without install pulseaudio to test 2.1 and pulseaudio lfe-filter > > > Two headphone jacks, internal speaker and subwoofer > > > > There are only three playback volume controls > > > > http://mailman.alsa-project.org/pipermail/alsa-devel/2015-June/093668.html > > > > Your case are > > > > A. 3 DACs, 2 HP, 2 speakers > Neither specification nor user manual mention the support of surround 5.1 It is curious because I have selected Analog Surround 5.1 Output in Sound Settings (GNOME), and I can test each individual speaker (5.1). It also works in Windows 8.1 do windows 8.1 use mic jack as clfe or surround ? Since the user manual did not provide the mapping, http://www.intel.com/support/motherboards/desktop/sb/CS-034198.htm How do the other user know the mapping even if you implemented 5.1 ? You have to follow up the above thread about the name of volume control if you think your case are D: 3DACs 2 HP 1Mic 2 Speaker