Ubuntu 12.04, only "dummy output" device detected

Please attach a pulseaudio log. Follow the directions here: https://wiki.ubuntu.com/PulseAudio/Log

Log bellow.

Because this is permament issue (no sound) I opened youtube and played one of the clips (no sound here) while running the log capture.

Status changed to 'Confirmed' because the bug affects multiple users.

Add to /etc/modprobe.d/ file with the line "options snd-hda-intel model=auto"

Same problem here but I had sound after installation. Maybe some update has broken the sound configuration.

**** Liste der Hardware-Geräte (PLAYBACK) ****
Karte 0: Intel [HDA Intel], Gerät 0: STAC92xx Analog [STAC92xx Analog]
  Sub-Geräte: 1/1
  Sub-Gerät #0: subdevice #0

00:1b.0 Audio device: Intel Corporation N10/ICH 7 Family High Definition Audio Controller (rev 01)

How ever, its working again. (I didn't change anything, just some phyton updates were installed).
Comment #5 is obsolete.

I have exactly the same problem with a Nvidia ion; everything seems present and configurer with NO sound at all from any software.

attached pulselog

aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: NVidia [HDA NVidia], device 0: ALC889A Analog [ALC889A Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: NVidia [HDA NVidia], device 1: ALC889A Digital [ALC889A Digital]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: NVidia [HDA NVidia], device 3: HDMI 0 [HDMI 0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

cat /etc/modprobe.d/alsa-base.conf
# autoloader aliases
install sound-slot-0 /sbin/modprobe snd-card-0
install sound-slot-1 /sbin/modprobe snd-card-1
install sound-slot-2 /sbin/modprobe snd-card-2
install sound-slot-3 /sbin/modprobe snd-card-3
install sound-slot-4 /sbin/modprobe snd-card-4
install sound-slot-5 /sbin/modprobe snd-card-5
install sound-slot-6 /sbin/modprobe snd-card-6
install sound-slot-7 /sbin/modprobe snd-card-7

# Cause optional modules to be loaded above generic modules
install snd /sbin/modprobe --ignore-install snd $CMDLINE_OPTS && { /sbin/modprobe --quiet --use-blacklist snd-ioctl32 ; /sbin/modprobe --quiet --use-blacklist snd-seq ; }
#
# Workaround at bug #499695 (reverted in Ubuntu see LP #319505)
install snd-pcm /sbin/modprobe --ignore-install snd-pcm $CMDLINE_OPTS && { /sbin/modprobe --quiet --use-blacklist snd-pcm-oss ; : ; }
install snd-mixer /sbin/modprobe --ignore-install snd-mixer $CMDLINE_OPTS && { /sbin/modprobe --quiet --use-blacklist snd-mixer-oss ; : ; }
install snd-seq /sbin/modprobe --ignore-install snd-seq $CMDLINE_OPTS && { /sbin/modprobe --quiet --use-blacklist snd-seq-midi ; /sbin/modprobe --quiet --use-blacklist snd-seq-oss ; : ; }
#
install snd-rawmidi /sbin/modprobe --ignore-install snd-rawmidi $CMDLINE_OPTS && { /sbin/modprobe --quiet --use-blacklist snd-seq-midi ; : ; }
# Cause optional modules to be loaded above sound card driver modules
install snd-emu10k1 /sbin/modprobe --ignore-install snd-emu10k1 $CMDLINE_OPTS && { /sbin/modprobe --quiet --use-blacklist snd-emu10k1-synth ; }
install snd-via82xx /sbin/modprobe --ignore-install snd-via82xx $CMDLINE_OPTS && { /sbin/modprobe --quiet --use-blacklist snd-seq ; }

# Load saa7134-alsa instead of saa7134 (which gets dragged in by it anyway)
install saa7134 /sbin/modprobe --ignore-install saa7134 $CMDLINE_OPTS && { /sbin/modprobe --quiet --use-blacklist saa7134-alsa ; : ; }
# Prevent abnormal drivers from grabbing index 0
options bt87x index=-2
options cx88_alsa index=-2
options saa7134-alsa index=-2
options snd-atiixp-modem index=-2
options snd-intel8x0m index=-2
options snd-via82xx-modem index=-2
options snd-usb-audio index=-2
options snd-usb-caiaq index=-2
options snd-usb-ua101 index=-2
options snd-usb-us122l index=-2
options snd-usb-usx2y index=-2
# Ubuntu #62691, enable MPU for snd-cmipci
options snd-cmipci mpu_port=0x330 fm_port=0x388
# Keep snd-pcsp from being loaded as first soundcard
options snd-pcsp index=-2
# Keep snd-usb-audio from beeing loaded as first soundcard
options snd-usb-audio index=-2
#added following earlier bug report bu no possitive effect
options snd-hda-intel model=auto

$ lsmod
Module ...

Please also refer to https://bugs.launchpad.net/pulseaudio/+bug/933209, where the symptoms suggest that the problem is caused by pulseaudio rather than alsa-driver.

i have the same problem right now!! audio is not working i can not play any video with sound because app that plays it crashes. ubuntu 12.04

no driver is found

Will
1) executing the "pulseaudio -k" cause the sound device to show up?
2) logging out and in again cause the sound device to show up?

It is possible that you will get different answers to the above questions, in which case we're looking at more than one bug here...

manzabud@manzabud-MS-7309:~$ pulseaudio -k
manzabud@manzabud-MS-7309:~$ sudo su
[sudo] password for manzabud:
root@manzabud-MS-7309:/home/manzabud# pulseaudio -k
E: [pulseaudio] main.c: Failed to kill daemon: No such process
root@manzabud-MS-7309:/home/manzabud#

look at this screenshot please. i am going mad because i can not use ubuntu.
if an app plays a sound crashes, it comes shadowed as you see firefox.
please ask what ever you want to know i want help in this.
thank you. God bless you!

Something worked for me, copy this killall pulseaudio; rm -r ~/.pulse* here:

etc/rc.local before exit 0

this usually fix the audio but every reboot the problem returns, but if you copy this in that script it will automatically execute.

'pulseaudio -k' did the trick.

Type apt-get purge alsa-dha-dkms into terminal, restart.

Noob/First post ... I have two audio devices in my ASUS P8Z77-V/CORE I7/EGA GTX 670 system that weren't being recognized and the workaround that now works every time is to select the "recovery mode" kernel from the Grub menu (you need to comment out "GRUB_HIDDEN_TIMEOUT=0" in /etc/default/grub and run update-grub if Ubuntu is the only OS in the system in order to see this menu), then simply select Resume from the Recovery Menu to continue with a "normal" boot (4 extra keystrokes during the boot). This also fixed a 1+ minute pause during bootup, and a system hang that was occuring on shutdown/reboot (requiring a manual reset). IMHO this makes Ubuntu seem quite unfriendly to a new user and is therefore an important bug to fix. I want to see Ubuntu be very successful.

I had sound but sound was not good so I played with the settings a little bit. Suddenly all options are gone with only one left: "Dummy output". I dread this so much because it means that it is time to reinstall Ubuntu....again.

I have had problems with sound before but after reinstall of Ubuntu 12.04 it was working again. On previous laptop, previous Ubuntu versions, similar problems with sound. It seems that sound is bit hard to have working reliably if at all on Ubuntu. My laptop is Alienware, value around $2000. NO SOUND! It sucks!

Is there a way to have good sound on Ubuntu. For example with an external sound card or something?

pulseadio -k
doesn't work

apt-get purge alsa-dha-dkms
doesn't work, there is no package alsa-dha-dkms. Must be typo or different Ubuntu version? I'm on Ubuntu 12.04.

There are many different reasons why PulseAudio would not detect your card. Different people probably have different bugs here.
If "pulseaudio -k" does *not* work, you can get more information by looking at a PulseAudio verbose log: https://wiki.ubuntu.com/PusleAudio/Log

I had the same issue. Dummy Output after installing 12.04. Alsa force-reload solves the problem but it ruins my wi-fi connectivity somehow. After force-reload my wifi device is fine for some time and then all of a sudden decides to "de-authenticate" the network. After that it would not connect to the wifi network no matter what. After reboot it's working fine until I do force-reload of alsa. Then I decided to try Oleg Cukanov's solution. It works as a charm. My config file had "options snd-hda-intel model=generic" in it. After changing it to "options snd-hda-intel model=auto" the sound and the wifi are working properly (for now).

That is interesting. I don't even use my wi-fi connectivity anymore because it keeps on prompting me for the network key. It will work for a few minutes and then start prompting for key again. I must admin I didn't even bother to try to fix this issue, I can live with connectivity for now. But my hunch is that it is caused by Ubuntu. A bug for sure.

pulseaudio use front device which has a softvol "PCM Playback Volume" for capturing

http://git.alsa-project.org/?p=alsa-lib.git;a=commit;h=6bb36928b114e27dcfeeddceabc3241e0fe1d921

0.714| 0.000) I: [pulseaudio] alsa-source.c: Hardware volume ranges from -16.50 dB to 60.00 dB.
( 0.714| 0.000) I: [pulseaudio] alsa-source.c: Fixing base volume to -60.00 dB
( 0.714| 0.000) I: [pulseaudio] alsa-source.c: Using hardware volume control. Hardware dB scale supported.
( 0.714| 0.000) I: [pulseaudio] alsa-source.c: Using hardware mute control.
( 0.714| 0.000) D: [pulseaudio] alsa-util.c: snd_pcm_dump():
( 0.714| 0.000) D: [pulseaudio] alsa-util.c: Soft volume PCM
( 0.714| 0.000) D: [pulseaudio] alsa-util.c: Control: PCM Playback Volume
( 0.714| 0.000) D: [pulseaudio] alsa-util.c: min_dB: -51
( 0.714| 0.000) D: [pulseaudio] alsa-util.c: max_dB: 0
( 0.714| 0.000) D: [pulseaudio] alsa-util.c: resolution: 256
( 0.714| 0.000) D: [pulseaudio] alsa-util.c: Its setup is:
( 0.714| 0.000) D: [pulseaudio] alsa-util.c: stream : CAPTURE
( 0.714| 0.000) D: [pulseaudio] alsa-util.c: access : MMAP_INTERLEAVED
( 0.714| 0.000) D: [pulseaudio] alsa-util.c: format : S16_LE
( 0.714| 0.000) D: [pulseaudio] alsa-util.c: subformat : STD
( 0.714| 0.000) D: [pulseaudio] alsa-util.c: channels : 2
( 0.714| 0.000) D: [pulseaudio] alsa-util.c: rate : 44100
( 0.714| 0.000) D: [pulseaudio] alsa-util.c: exact rate : 44100 (44100/1)
( 0.714| 0.000) D: [pulseaudio] alsa-util.c: msbits : 16
( 0.714| 0.000) D: [pulseaudio] alsa-util.c: buffer_size : 16384
( 0.714| 0.000) D: [pulseaudio] alsa-util.c: period_size : 8192
( 0.714| 0.000) D: [pulseaudio] alsa-util.c: period_time : 185759
( 0.714| 0.000) D: [pulseaudio] alsa-util.c: tstamp_mode : ENABLE
( 0.714| 0.000) D: [pulseaudio] alsa-util.c: period_step : 1
( 0.714| 0.000) D: [pulseaudio] alsa-util.c: avail_min : 15502
( 0.714| 0.000) D: [pulseaudio] alsa-util.c: period_event : 0
( 0.714| 0.000) D: [pulseaudio] alsa-util.c: start_threshold : -1
( 0.714| 0.000) D: [pulseaudio] alsa-util.c: stop_threshold : 1073741824
( 0.714| 0.000) D: [pulseaudio] alsa-util.c: silence_threshold: 0
( 0.714| 0.000) D: [pulseaudio] alsa-util.c: silence_size : 0
( 0.714| 0.000) D: [pulseaudio] alsa-util.c: boundary : 1073741824
( 0.714| 0.000) D: [pulseaudio] alsa-util.c: Slave: Hardware PCM card 0 'HDA ATI SB' device 0 subdevice 0
( 0.714| 0.000) D: [pulseaudio] alsa-util.c: Its setup is:
( 0.714| 0.000) D: [pulseaudio] alsa-util.c: stream : CAPTURE
( 0.714| 0.000) D: [pulseaudio] alsa-util.c: access : MMAP_INTERLEAVED
( 0.714| 0.000) D: [pulseaudio] alsa-util.c: format : S16_LE
( 0.714| 0.000) D: [pulseaudio] alsa-util.c: subformat : STD
( 0.714| 0.000) D: [pulseaudio] alsa-util.c: channels : 2
( 0.714| 0.000) D: [pulseaudio] alsa-util.c: rate : 44100
( 0.714| 0.000) D: [pulseaudio] alsa-util.c: exact rate : 44100 (44100/1)
( 0.714| 0.000) D: [pulseaudio...

Adding of "options snd-hda-intel model=generic" to /etc/modprobe.d/alsa-base.conf fixed the same problem for me. Before I had "options snd-hda-intel probe_mask=1 model=auto" there. Now sound in 12.04 works fine.

During problem investigation I found following: I have Ubuntu 8.04 installed on my PC. When I reboot to 8.04 -- sound works fine in it. Then I reboot to 12.04 and sound continuing working there too. But when I switch off PC and boot directly to 12.04 -- "Dummy output" problem appears. Seems like it is some sound card initiation (or auto detection) problem..

Thank you for reporting this bug to Ubuntu.
Ubuntu 12.04 (precise) reached end-of-life on April 28, 2017.

See this document for currently supported Ubuntu releases:
https://wiki.ubuntu.com/Releases

We appreciate that this bug may be old and you might not be interested in discussing it any more. But if you are then please upgrade to the latest Ubuntu version and re-test.

[Expired for pulseaudio (Ubuntu) because there has been no activity for 60 days.]