Arch Linux

thustek

Member

Registered: 2014-01-05

Posts: 2

Laptop subwoofer doesn't work properly

I have a problem with subwoofer in laptop (Samsung np550-p5c). To make it work each time laptop plays sound I have to mute and unmute all channels or only  Bass Speaker channel in alsamixer on card Intel PantherPoint HDMI.

When I listen to music (after muting and unmuting), all other applications are using subwoofer, but when no sound is being played and then I play something, it is being played without use of subwoofer. Muting and unmuting makes it work.

Disabling Auto-Mute Mode in alsamixer doesn't help.

My pulseaudio configuration files:

/etc/pulse/client.conf

/etc/pulse/daemon.conf
resample-method=speex-float-10
enable-lfe-remixing = yes
flat-volumes = no
default-fragments = 8
default-fragment-size-msec = 10
deferred-volume-safety-margin-usec = 1

/etc/pulse/default.pa
.nofail
.fail
load-module module-device-restore
load-module module-stream-restore
load-module module-card-restore
load-module module-augment-properties
load-module module-switch-on-port-available
load-module module-switch-on-connect
load-module module-alsa-sink device=dmix
load-module module-alsa-source device=dsnoop
load-module module-udev-detect tsched=0
.ifexists module-jackdbus-detect.so
.nofail
load-module module-jackdbus-detect channels=2
.fail
.endif
.ifexists module-bluetooth-policy.so
load-module module-bluetooth-policy
.endif
.ifexists module-bluetooth-discover.so
load-module module-bluetooth-discover
.endif
.ifexists module-esound-protocol-unix.so
load-module module-esound-protocol-unix
.endif
load-module module-native-protocol-unix
.ifexists module-gconf.so
.nofail
load-module module-gconf
.fail
.endif
load-module module-default-device-restore
load-module module-rescue-streams
load-module module-always-sink
load-module module-intended-roles
load-module module-suspend-on-idle
.ifexists module-console-kit.so
load-module module-console-kit
.endif
.ifexists module-systemd-login.so
load-module module-systemd-login
.endif
load-module module-position-event-sounds
load-module module-role-cork
load-module module-filter-heuristics
load-module module-filter-apply

/etc/pulse/system.pa
.ifexists module-udev-detect.so
load-module module-udev-detect
.else
load-module module-detect
.endif
.ifexists module-esound-protocol-unix.so
load-module module-esound-protocol-unix
.endif
load-module module-native-protocol-unix
load-module module-stream-restore
load-module module-device-restore
load-module module-default-device-restore
load-module module-rescue-streams
load-module module-always-sink
load-module module-suspend-on-idle
load-module module-position-event-sounds

aplay -L
null
    Discard all samples (playback) or generate zero samples (capture)
pulse
    PulseAudio Sound Server
default
    Default ALSA Output (currently PulseAudio Sound Server)
sysdefault:CARD=PCH
    HDA Intel PCH, ALC269VC Analog
    Default Audio Device
front:CARD=PCH,DEV=0
    HDA Intel PCH, ALC269VC Analog
    Front speakers
surround40:CARD=PCH,DEV=0
    HDA Intel PCH, ALC269VC Analog
    4.0 Surround output to Front and Rear speakers
surround41:CARD=PCH,DEV=0
    HDA Intel PCH, ALC269VC Analog
    4.1 Surround output to Front, Rear and Subwoofer speakers
surround50:CARD=PCH,DEV=0
    HDA Intel PCH, ALC269VC Analog
    5.0 Surround output to Front, Center and Rear speakers
surround51:CARD=PCH,DEV=0
    HDA Intel PCH, ALC269VC Analog
    5.1 Surround output to Front, Center, Rear and Subwoofer speakers
surround71:CARD=PCH,DEV=0
    HDA Intel PCH, ALC269VC Analog
    7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
hdmi:CARD=PCH,DEV=0
    HDA Intel PCH, HDMI 0
    HDMI Audio Output

thustek

Member

Registered: 2014-01-05

Posts: 2

Re: Laptop subwoofer doesn't work properly

Bump.

Fun fact: it works fine on Ubuntu...