[alsa-devel] Acer Aspire 8920g / snd-hda-intel / ALC889 / surround sound

[Sergey 'Jin' Bostandzhyan]

Thanks a lot! Nice to see some movement on this.

On Wed, Jan 21, 2009 at 11:31:30PM +0100, Hector Martin wrote:
> I was able to get audio to work on an Aspire 8930G using the attached
> patch, including routing all speakers. However, I could never get any
> DACs other than the first two to work. I've been holding off on making a
> real patch to add full support properly until I fix this issue.
> 
> Can you test the patch? For me, only Front and Rear work, not Center/Sub.

Hmm, I applied the patch to the latest git, selected model acer-aspire-4930g,
upped volume in the mixers and ran:
speaker-test -c6 -Dplug:surround51 -t wav -l1


Got only front left / front right output. What am I missing?

> I'm currently using a nasty hack which routes DAC 0 to both Front and
> Rear and DAC 1 to CLFE and some asound.conf magic to make it sound
> decent, but it's 3.1 sound, not 5.1.
> 
> I managed to get hda-analyzer to work and confirmed that the audio does
> get to the DACs (if I configure the Rear DAC to the CLFE stream
> dynamically it does work), but "something" is making all but the first
> to DACs not work. It could also be the mixers attached to the DACs - the
> actual audio outputs are okay because I can route them to the working
> DACs and get output. I've tried tweaking everything and ensured that
> everything was turned up and unmuted, but I've run out of ideas.

Am I supposed to adjust anything with the analyzer before testing your patch?

Kind regards,
Jin


> Recently I've also tested the three audio jacks in 5.1 output mode. Same
> problem - the CLFE *output* works but I get no sound unless I hack the
> routing to connect it to the other DACs.
> 
> I'm starting to suspect that there's some proprietary Realtek init
> missing - maybe some tables or something related to the "encryption module".
> 
> Here's a little render that I made of the codec routing:
> http://marcansoft.com/transf/codec.png
> 
> 
> -- 
> Hector Martin (hector at marcansoft.com)
> Public Key: http://www.marcansoft.com/marcan.asc
> 

> >From 8aaa46dfda9b7c0ab19021532750adb03ded877e Mon Sep 17 00:00:00 2001
> From: Hector Martin <hector at marcansoft.com>
> Date: Wed, 3 Dec 2008 01:50:49 +0100
> Subject: [PATCH - snd-intel-hda 1/1] Add partial 8930G support
> 
> 
> Signed-off-by: Hector Martin <hector at marcansoft.com>
> 
> diff --git a/pci/hda/patch_realtek.c b/pci/hda/patch_realtek.c
> index 4afa0c9..6d6e06a 100644
> --- a/pci/hda/patch_realtek.c
> +++ b/pci/hda/patch_realtek.c
> @@ -1302,7 +1302,7 @@ static struct hda_verb alc888_acer_aspire_4930g_verbs[] = {
>  	{0x22, AC_VERB_SET_AMP_GAIN_MUTE, AMP_IN_MUTE(0xb)},
>  /* Enable unsolicited event for HP jack */
>  	{0x15, AC_VERB_SET_UNSOLICITED_ENABLE, ALC880_HP_EVENT | AC_USRSP_EN},
> -/* Connect Internal HP to front */
> +/* Connect Front speakers to front */
>  	{0x14, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT},
>  	{0x14, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE},
>  	{0x14, AC_VERB_SET_CONNECT_SEL, 0x00},
> @@ -1310,6 +1310,16 @@ static struct hda_verb alc888_acer_aspire_4930g_verbs[] = {
>  	{0x15, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT},
>  	{0x15, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE},
>  	{0x15, AC_VERB_SET_CONNECT_SEL, 0x00},
> +/* Connect Rear speakers to rear */
> +	{0x1b, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT},
> +	{0x1b, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE},
> +	{0x1b, AC_VERB_SET_CONNECT_SEL, 0x01},
> +/* Connect CLFE speakers to CLFE */
> +	{0x16, AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT},
> +	{0x16, AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE},
> +	{0x16, AC_VERB_SET_CONNECT_SEL, 0x02},
> +/* Set EAPD to enable speakers */
> +	{0x15, AC_VERB_SET_EAPD_BTLENABLE, 0x02},
>  	{ }
>  };
>  
> @@ -1365,8 +1375,15 @@ static void alc888_acer_aspire_4930g_automute(struct hda_codec *codec)
>  	present = snd_hda_codec_read(codec, 0x15, 0,
>  				     AC_VERB_GET_PIN_SENSE, 0) & 0x80000000;
>  	bits = present ? HDA_AMP_MUTE : 0;
> +	/* Front */
>  	snd_hda_codec_amp_stereo(codec, 0x14, HDA_OUTPUT, 0,
>  				 HDA_AMP_MUTE, bits);
> +	/* CLFE */
> +	snd_hda_codec_amp_stereo(codec, 0x16, HDA_OUTPUT, 0,
> +				 HDA_AMP_MUTE, bits);
> +	/* Rear */
> +	snd_hda_codec_amp_stereo(codec, 0x1b, HDA_OUTPUT, 0,
> +				 HDA_AMP_MUTE, bits);
>  }
>  
>  static void alc888_acer_aspire_4930g_unsol_event(struct hda_codec *codec,
> -- 
> 1.5.6.4
>