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

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