[PATCH] alsactl init: Mute CD Playback volume by default

[PATCH] alsactl init: Mute CD Playback volume by default

[David Henningsson]

[-- Attachment #1: Type: text/plain, Size: 397 bytes --]

The CD analog playback line is seldom used these days, as all
modern players rip the CD and use the DAC on the sound card.
In addition, it causes background hum on some machines.
Therefore keep it muted by default.

BugLink: http://bugs.launchpad.net/bugs/747184
Signed-off-by: David Henningsson <david.henningsson@canonical.com>

-- 
David Henningsson, Canonical Ltd.
http://launchpad.net/~diwic

[-- Attachment #2: 0001-alsactl-init-Mute-CD-Playback-volume-by-default.patch --]
[-- Type: text/x-patch, Size: 1689 bytes --]

>From 26b4ad5af8f342fea905ea3682d5a3a512f297e3 Mon Sep 17 00:00:00 2001
From: David Henningsson <david.henningsson@canonical.com>
Date: Mon, 4 Apr 2011 11:28:47 +0200
Subject: [PATCH] alsactl init: Mute CD Playback volume by default

The CD analog playback line is seldom used these days, as all
modern players rip the CD and use the DAC on the sound card.
In addition, it causes background hum on some machines.
Therefore keep it muted by default.

BugLink: http://bugs.launchpad.net/bugs/747184
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
---
 alsactl/init/default |   13 +++----------
 1 files changed, 3 insertions(+), 10 deletions(-)

diff --git a/alsactl/init/default b/alsactl/init/default
index 7f8ec4c..b7cb941 100644
--- a/alsactl/init/default
+++ b/alsactl/init/default
@@ -144,17 +144,10 @@ CTL{name}="Music Playback Switch",CTL{do_search}=="1", \
   CTL{values}="on"
 
 CTL{reset}="mixer"
-CTL{name}="CD Playback Volume",PROGRAM!="__ctl_search", GOTO=""
-# if master volume control is present, turn CD volume to max
-ENV{has_pmaster_vol}=="true",CTL{write}=="0dB",GOTO=""
-ENV{has_pmaster_vol}=="true",CTL{write}=="100%",GOTO=""
-# exception - some HDA codecs have shifted dB range
-CTL{dBmin}=="-34.50dB",CTL{dBmax}=="12.00dB",CTL{write}=="0dB",GOTO=""
-CTL{dBmin}=="-30.00dB",CTL{dBmax}=="0dB",CTL{write}=="0dB",GOTO=""
-CTL{write}!="$env{pvolume}",CTL{values}="$env{ppercent}"
-LABEL=""
+CTL{name}="CD Playback Volume",CTL{do_search}=="1", \
+  CTL{values}="0%"
 CTL{name}="CD Playback Switch",CTL{do_search}=="1", \
-  CTL{values}="on"
+  CTL{values}="off"
 
 CTL{reset}="mixer"
 CTL{name}="Mono Playback Volume",CTL{do_search}=="1", \
-- 
1.7.4.1


[-- Attachment #3: Type: text/plain, Size: 160 bytes --]

_______________________________________________
Alsa-devel mailing list
Alsa-devel@alsa-project.org
http://mailman.alsa-project.org/mailman/listinfo/alsa-devel

Re: [PATCH] alsactl init: Mute CD Playback volume by default

[Takashi Iwai]

At Mon, 04 Apr 2011 11:36:20 +0200,
David Henningsson wrote:
> 
> The CD analog playback line is seldom used these days, as all
> modern players rip the CD and use the DAC on the sound card.
> In addition, it causes background hum on some machines.
> Therefore keep it muted by default.
> 
> BugLink: http://bugs.launchpad.net/bugs/747184
> Signed-off-by: David Henningsson <david.henningsson@canonical.com>

Applied now.  Thanks.


Takashi

> 
> -- 
> David Henningsson, Canonical Ltd.
> http://launchpad.net/~diwic
> [2 0001-alsactl-init-Mute-CD-Playback-volume-by-default.patch <text/x-patch (7bit)>]
> >From 26b4ad5af8f342fea905ea3682d5a3a512f297e3 Mon Sep 17 00:00:00 2001
> From: David Henningsson <david.henningsson@canonical.com>
> Date: Mon, 4 Apr 2011 11:28:47 +0200
> Subject: [PATCH] alsactl init: Mute CD Playback volume by default
> 
> The CD analog playback line is seldom used these days, as all
> modern players rip the CD and use the DAC on the sound card.
> In addition, it causes background hum on some machines.
> Therefore keep it muted by default.
> 
> BugLink: http://bugs.launchpad.net/bugs/747184
> Signed-off-by: David Henningsson <david.henningsson@canonical.com>
> ---
>  alsactl/init/default |   13 +++----------
>  1 files changed, 3 insertions(+), 10 deletions(-)
> 
> diff --git a/alsactl/init/default b/alsactl/init/default
> index 7f8ec4c..b7cb941 100644
> --- a/alsactl/init/default
> +++ b/alsactl/init/default
> @@ -144,17 +144,10 @@ CTL{name}="Music Playback Switch",CTL{do_search}=="1", \
>    CTL{values}="on"
>  
>  CTL{reset}="mixer"
> -CTL{name}="CD Playback Volume",PROGRAM!="__ctl_search", GOTO=""
> -# if master volume control is present, turn CD volume to max
> -ENV{has_pmaster_vol}=="true",CTL{write}=="0dB",GOTO=""
> -ENV{has_pmaster_vol}=="true",CTL{write}=="100%",GOTO=""
> -# exception - some HDA codecs have shifted dB range
> -CTL{dBmin}=="-34.50dB",CTL{dBmax}=="12.00dB",CTL{write}=="0dB",GOTO=""
> -CTL{dBmin}=="-30.00dB",CTL{dBmax}=="0dB",CTL{write}=="0dB",GOTO=""
> -CTL{write}!="$env{pvolume}",CTL{values}="$env{ppercent}"
> -LABEL=""
> +CTL{name}="CD Playback Volume",CTL{do_search}=="1", \
> +  CTL{values}="0%"
>  CTL{name}="CD Playback Switch",CTL{do_search}=="1", \
> -  CTL{values}="on"
> +  CTL{values}="off"
>  
>  CTL{reset}="mixer"
>  CTL{name}="Mono Playback Volume",CTL{do_search}=="1", \
> -- 
> 1.7.4.1
> 
> [3  <text/plain; us-ascii (7bit)>]
> _______________________________________________
> Alsa-devel mailing list
> Alsa-devel@alsa-project.org
> http://mailman.alsa-project.org/mailman/listinfo/alsa-devel