slackware-current/source/ap/alsa-utils/rc.alsa
Patrick J Volkerding 76fc4757ac Slackware 14.1
Mon Nov  4 17:08:47 UTC 2013
Slackware 14.1 x86_64 stable is released!

It's been another interesting release cycle here at Slackware bringing
new features like support for UEFI machines, updated compilers and
development tools, the switch from MySQL to MariaDB, and many more
improvements throughout the system.  Thanks to the team, the upstream
developers, the dedicated Slackware community, and everyone else who
pitched in to help make this release a reality.

The ISOs are off to be replicated, a 6 CD-ROM 32-bit set and a
dual-sided
32-bit/64-bit x86/x86_64 DVD.  Please consider supporting the Slackware
project by picking up a copy from store.slackware.com.  We're taking
pre-orders now, and offer a discount if you sign up for a subscription.

Have fun!  :-)
2018-05-31 22:57:36 +02:00

87 lines
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Bash

#!/bin/sh
# Load the mixer settings and OSS compatibility (if enabled) for ALSA.
# (the Advanced Linux Sound Architecture)
# A function to load the ALSA mixer settings:
load_alsa_mixer() {
if [ -r /var/lib/alsa/asound.state ]; then
echo "Loading ALSA mixer settings: /usr/sbin/alsactl restore"
/usr/sbin/alsactl restore
else
# It's possible a user might not want to set a default sound state.
# In that case, do this: touch /var/lib/alsa/no.asound.state
if [ ! -r /var/lib/alsa/no.asound.state ]; then
echo "Setting default ALSA mixer settings."
# set default mixer volumes for ALSA
# Taken from the alsaconf script.
amixer -s -q <<EOF
set Master 75% unmute
set Master -12dB
set 'Master Mono' 75% unmute
set 'Master Mono' -12dB
set Front 75% unmute
set Front -12dB
set PCM 90% unmute
set PCM 0dB
mixer Synth 90% unmute
mixer Synth 0dB
mixer CD 90% unmute
mixer CD 0dB
# mute mic
set Mic 0% mute
# ESS 1969 chipset has 2 PCM channels
set PCM,1 90% unmute
set PCM,1 0dB
# Trident/YMFPCI/emu10k1
set Wave 100% unmute
set Music 100% unmute
set AC97 100% unmute
# CS4237B chipset:
set 'Master Digital' 75% unmute
# Envy24 chips with analog outs
set DAC 90% unmute
set DAC -12dB
set DAC,0 90% unmute
set DAC,0 -12dB
set DAC,1 90% unmute
set DAC,1 -12dB
# some notebooks use headphone instead of master
set Headphone 75% unmute
set Headphone -12dB
set Playback 100% unmute
# turn off digital switches
set "SB Live Analog/Digital Output Jack" off
set "Audigy Analog/Digital Output Jack" off
EOF
echo "Storing default ALSA mixer settings: /usr/sbin/alsactl store"
/usr/sbin/alsactl store
fi
fi
}
# If udev or something else has loaded the ALSA modules, then
# simply load the mixer settings and make sure the OSS compat
# modules are loaded (if enabled):
if [ -d /proc/asound ]; then
if [ -x /etc/rc.d/rc.alsa-oss ]; then
sh /etc/rc.d/rc.alsa-oss
fi
load_alsa_mixer
else
# If there are ALSA modules defined in /etc/modprobe.d/*, but
# ALSA is not yet loaded, then load the modules now:
DRIVERS=$(modprobe -c | grep -E "^[[:space:]]*alias[[:space:]]+snd-card-[[:digit:]]" | tr -s "[[:blank:]]" " " | cut -d " " -f 3)
if [ ! "$DRIVERS" = "" ]; then
echo "Loading ALSA kernel modules."
for module in $DRIVERS; do
modprobe $module
done
fi
# If ALSA is now up, then load the mixer settings and OSS modules (if enabled):
if [ -d /proc/asound ]; then
if [ -x /etc/rc.d/rc.alsa-oss ]; then
sh /etc/rc.d/rc.alsa-oss
fi
load_alsa_mixer
fi
fi