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As the title, I'm getting no sound on Ubuntu 14.04; sound are correctly reproduced on Windows. I've tried many solutions, but the problem seems to be that pulseaudio doesn't recognize my sound card. Maybe this is due to some changes that I've done in bootup services, even if I don't think I changed something related to audio devices.

This is the services current running

$>sudo service --status-all
 [ + ]  acpid
 [ - ]  anacron
 [ - ]  apache2
 [ + ]  apparmor
 [ ? ]  apport
 [ + ]  atd
 [ + ]  avahi-daemon
 [ ? ]  binfmt-support
 [ + ]  bluetooth
 [ - ]  brltty
 [ + ]  bumblebeed
 [ ? ]  console-setup
 [ + ]  cron
 [ ? ]  cryptdisks
 [ ? ]  cryptdisks-early
 [ + ]  cups
 [ + ]  cups-browsed
 [ - ]  dbus
 [ + ]  ddclient
 [ + ]  dictd
 [ ? ]  dns-clean
 [ + ]  ebtables
 [ - ]  fancontrol
 [ + ]  friendly-recovery
 [ - ]  grub-common
 [ - ]  hddtemp
 [ ? ]  irqbalance
 [ + ]  kerneloops
 [ ? ]  killprocs
 [ ? ]  kmod
 [ + ]  libvirt-bin
 [ ? ]  lightdm
 [ - ]  lm-sensors
 [ ? ]  mysql
 [ ? ]  networking
 [ + ]  nmbd
 [ + ]  ntop
 [ ? ]  ondemand
 [ - ]  postgresql
 [ ? ]  pppd-dns
 [ - ]  procps
 [ - ]  pulseaudio
 [ ? ]  qemu-system-x86
 [ ? ]  rc.local
 [ + ]  resolvconf
 [ - ]  rsync
 [ + ]  rsyslog
 [ ? ]  runhwactivator
 [ + ]  samba
 [ - ]  samba-ad-dc
 [ + ]  saned
 [ ? ]  screen-cleanup
 [ ? ]  sendsigs
 [ - ]  smartmontools
 [ + ]  smbd
 [ ? ]  speech-dispatcher
 [ - ]  sudo
 [ ? ]  tlp
 [ - ]  tomcat7
 [ + ]  udev
 [ ? ]  umountfs
 [ ? ]  umountnfs.sh
 [ ? ]  umountroot
 [ - ]  unattended-upgrades
 [ - ]  urandom
 [ ? ]  vboxautostart-service
 [ + ]  vboxballoonctrl-service
 [ + ]  vboxdrv
 [ + ]  vboxweb-service
 [ + ]  winbind
 [ - ]  x11-common

I noticed that many of the services flagged as [ - ] actually are active; so, I don't know if this output is true. As you can see, it seems that pulseaudio is not running. However

$>sudo service pulseaudio status
pulseaudio start/running, process 7993

Btw, here are some screenshots.

alsamixer alsamixer output

some pulseaudio tabs while reproducing some soundsPlayback tab enter image description here

Other tabs are simply empty, so it seems that it doesn't correctly recognize my sound card. Any idea?

tigerjack
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2 Answers2

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First , reset pulseaudio configuration by copying this command in a terminal: 

rm -r ~/.config/pulse; pulseaudio -k

If not ok, try to disable pulseaudio by running these 2 commands in a terminal: 

echo autospawn=no > ~/.pulse/client.conf
sudo killall -9 pulseaudio

then run

pulseaudio

to relaunch audio apps and test. Almost all Linux audio programs can use only Alsa without Pulseaudio (except Skype).

To set alsa volume easier than Alsamixer, install gnome-alsamixer.

αғsнιη
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laugeo
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  • Well, it works in some way; at least, until I reboot the system. After the sudo killall coomand, I have to manually run pulseaudio from a terminal to see the right input/output devices. Wnen I restart the session, btw, these devices disappear again and I have to do all the procedure again. – tigerjack Sep 21 '14 at 06:05
  • So try to run echo autospawn=yes > ~/.pulse/client.conf to autolaunch pulseaudio as before and test after reboot – laugeo Sep 21 '14 at 08:55
  • thanks, now it works ;) Just another question: why if I run sudo service status pulseaudio it tells that the service is stopped? – tigerjack Sep 21 '14 at 11:35
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    Yes because pulseaudio is not runned as a service(it could be for some special use), but as a user program (starting when user logon). – laugeo Sep 21 '14 at 12:29
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first go to your pc/laptop co. site then download your drivers for pc/laptop then install it . restart/reboot your system via terminal ctrl+alt+t type : reboot -f Done :-)

Saif Al-Mahameed
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