Under 12.04 :

How do I disable globally the internal speaker of my computer without having to unset it to each user session ?

I've tried to add "blacklist pcspkr" into "/etc/modprobe.d/blacklist" but it still let pulseaudio to use the internal speaker.

Here is the lsmod that doesn't appear to show the pc speaker working :

Module Size Used by
coretemp 13361 0
dcdbas 14098 0
snd_hda_codec_via 46188 1
microcode 18395 0
snd_hda_intel 33028 5
snd_hda_codec 116476 2 snd_hda_codec_via,snd_hda_intel
snd_hwdep 13276 1 snd_hda_codec
snd_pcm 81052 4 snd_hda_intel,snd_hda_codec
snd_seq_midi 13132 0
snd_rawmidi 25425 1 snd_seq_midi
snd_seq_midi_event 14475 1 snd_seq_midi
serio_raw 13031 0
lpc_ich 16992 0
snd_seq 51568 2 snd_seq_midi,snd_seq_midi_event
hid_generic 12445 0
snd_timer 28931 2 snd_pcm,snd_seq
snd_seq_device 14137 3 snd_seq_midi,snd_rawmidi,snd_seq
snd 62520 17 snd_hda_codec_via,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
mac_hid 13077 0
soundcore 14635 1 snd
snd_page_alloc 14108 2 snd_hda_intel,snd_pcm
lp 17455 0
parport 40930 1 lp
usbhid 46022 0
hid 82474 2 hid_generic,usbhid
aufs 159970 69
overlayfs 27511 0
squashfs 36095 1
nbd 17427 1
r8169 56852 0
i915 470739 0
drm_kms_helper 45427 1 i915
drm 231841 2 i915,drm_kms_helper
i2c_algo_bit 13316 1 i915
video 19069 1 i915

However I'm hearing music from the pc speaker.

Maybe it's at the pulseaudio level but how to do the change global and not limited to one user ?

Thank you !

5

5 Answers

You can try from terminal the command alsamixer

alsamixer is the alsa provided ncurses GUI for accessing hardware mixer elements, and it is capable of seperately turning off the internal speaker.

see man page of alsamixer for more infor man alsamixer

Also, if you want raw access to sound card parameters, you can use amixer which is a command-line mixer for ALSA soundcard driver

amixer -c<n> should provide that list

amixer -c<num> set <SCONTROL> mute will mute a mutable control by name

Be sure to check out various values of with amixer,the -c argument for selecting a sound card also works with alsamixer or amixer.

You can also install a GUI for alsamixer

sudo apt-get install alsamixergui

1

I had the same problem. This helped:

specifically, I used the alsa mixer in terminal to mute the pc speaker.

1

Here are some options I guess might work: How_to_disable_the_pc_speaker_(beep!)

1

I was unable to mute the internal pc speaker from alsamixer for some reason (in earlier cases over the years that always worked):

However, this time the Pulse Audio Control (ubuntu package pavucontrol) had one of the Output options which muted the pc speaker and let my headphones the signal.

Try using Pulse Audio Control (apt-get install pavucontrol, or launch from dash if already installed) and use controls within Output Options to mute the internal speaker while maintaining an audio stream to headphones.

In disabling globally the internal speaker of my computer your meaning turning off the sound to the speakers. So no sound comes out when your either logging in or anything else. Killing the pulse audio daemon would do it. You can do this by entering in command line "pactl exit" to turn off the pulse audio daemon and "pulseaudio" to turn pulseaudo on. This just turns it on and off. The man of pactl will give you a litte more information which might help

man pact

I found the link below useful. A more permanent way off doing what I think you want to happen. I know I don't like the sound coming out when starting up. I like a volume knob. I hope this helps.

How to temporarily disable Pulseaudio?

3

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