[alsa-devel] [PATCH] hda: Distortion fix for dell_m6_core_init

Takashi Iwai tiwai at suse.de
Mon Sep 1 08:38:44 CEST 2008


At Sun, 31 Aug 2008 14:53:38 -0400,
Matthew Ranostay wrote:
> 
> Added the EQ distortion fix to the dell_m6_core_init.
> 
> ---
> Signed-off-by: Matthew Ranostay <mranostay at embeddedalley.com>

Thanks.  I'll include this as 2.6.27 fixes, too.

BTW, I found the volume-knob on 0x1f is set to 0xff with other models
(e.g. intel boards).  Don't you need to fix them as well? 


Takashi

> diff --git a/pci/hda/patch_sigmatel.c b/pci/hda/patch_sigmatel.c
> index 6ad6ef3..9968ee4 100644
> --- a/pci/hda/patch_sigmatel.c
> +++ b/pci/hda/patch_sigmatel.c
> @@ -606,8 +606,9 @@ static struct hda_verb dell_eq_core_init[] = {
>  };
> 
>  static struct hda_verb dell_m6_core_init[] = {
> -	/* set master volume and direct control */
> -	{ 0x1f, AC_VERB_SET_VOLUME_KNOB_CONTROL, 0xff},
> +	/* set master volume to max value without distortion
> +	 * and direct control */
> +	{ 0x1f, AC_VERB_SET_VOLUME_KNOB_CONTROL, 0xec},
>  	/* setup audio connections */
>  	{ 0x0d, AC_VERB_SET_CONNECT_SEL, 0x00},
>  	{ 0x0a, AC_VERB_SET_CONNECT_SEL, 0x01},
> 


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