NO sound , NO device , Dummy output stereo

[mmort]

Removing pulse-cookie did not do anything. When I boot from the CD, the sound does work. It only stopped working a couple days ago...must have been one of the updates.

[narcisgarcia]

To verify the updates cause, you can make a Live-USB with the usb-creator tool (selecting to store documments and settings in extra space).
Then boot the Live-USB and apply updates.

[lkjoel]

Hey,
I have updated my Ubuntu to Lucid 10.04 from 9.10.

Although my sound disappeared in 9.10 only, I thought maybe upgrading might help, but there is no change.

I guess everything is installed fine.
But still
aplay -l command shows "NO sound cards.. "
Moreover the sound preferences shows no hardware, no input and a dummy stereo output.

I have banged my head a lot trying various things written in forums and all but no success.
Can please somebody help me, it would be very thankful.

One more thing : When I test "osstest" , I get sound in both the earphones , but altogether there is no sound. I am very much confused.

Early reply is highly appreciable.

Regards,
Aman

Try Fix your sound! in my signature.
Then use Post-Fix your sound! in my signature.
That will update OSS, and it will make your sound work.

[zmanian]

I'm having a similar problem in my Dell R14(N4010) running Maverick(10.10).

Any updates on this issue?

[lidex]

I'm having a similar problem in my Dell R14(N4010) running Maverick(10.10).

Any updates on this issue?

Is this an upgrade? Try removing old audio config files.
Using a Terminal="Applications->Accessories->Terminal"

rm -r ~/.pulse ~/.asound* ~/.pulse-cookie 
sudo rm /etc/asound.conf

Logout/in.

[awechris]

i had this exact problem, with "NO SOUNDCARD" found etc. I tried virtualy everything... recompiling alsa , reinstalling alsa etc. What recovered my sound was a newer kernel (daily build). As of today, it's 2 days old kernel build. However, ubuntu daily build kernel was taken from http://kernel.ubuntu.com/~kernel-ppa...0-31-maverick/

i don't reply much in forums, but in this case this problem took me several days to find solution, so i thought of sharing to save some other people's time.

[sloopjohnbutler]

Lidex,

A big "Thank You" to you for getting me out of a hole when I was away in Dallas, upgraded Ubuntu and got this issue (right in the middle of a load of video travel presentations)

If I did shutdown, (which I could only do using sudo shutdown -h now) then I had to run this lot from the terminal every time afterwards.

rm -r ~/.pulse ~/.asound*
sudo rm /etc/asound.conf

sudo apt-get update
sudo apt-get upgrade

sudo apt-get purge linux-sound-base alsa-base alsa-utils

sudo apt-get install linux-sound-base alsa-base alsa-utils gdm ubuntu-desktop

Reboot.

That was all very well, but I was stuffed if wi-fi internet wasn't available at the location.

After much experimentation, and lots of lost sleep in an unfamiliar time zone, my only way to have sound available for my video travel presentations was never to shutdown my netbook, as the only way to preserve the sound capability was to hibernate it every time.


When I got home, my son Chris (a part-time Debian developer) finally sussed out that it would be best if he removed pulseaudio, re-installed alsamixer and added my username to the audio group. Here are the commands he used .......

# remove pulseaudio
sudo apt-get remove pulseaudio

# add your user to the "audio" group to allow direct access to the sound device
sudo adduser jbutler audio

where "jbutler" is my username on the netbook

If that helps anyone, my trials and tribulations will have been worth it. I'm off to Cyprus this week, so it will make it so much easier if Ubuntu & VLC retains full capability this time.

John

[necrosymbiont]

I got this problem when I installed the "randomsound" package (for harvesting entropy from the sound card). Uninstalling "randomsound" and restarting the computer was a quick and easy fix.

[xubuntu84]

Can you post the output of these terminal commands for me please:

uname -a
aplay -l
cat /proc/asound/version
head -n 1 /proc/asound/card*/codec#*

Terminal="Applications->Accessories->Terminal"
Please post text output using code tags. Also helpful is the make/model of your PC/Laptop.

Try working through this page as some of it will apply and karmic is where your issues began:
https://wiki.ubuntu.com/DebuggingSou.../KarmicCaveats

Next do 'Part A' here:
http://ubuntuforums.org/showthread.php?t=789578

I've done these things, hope any of you will be able to assist. I have an Intel DP55KG with built-in optical audio out... so far I have purged alsa and pulse, reinstalled, and verified nothing is muted. Can't figure out what is going on:

benmctee@ubuntu-server:~$ uname -a
Linux ubuntu-server 2.6.35-24-generic #42-Ubuntu SMP Thu Dec 2 02:41:37 UTC 2010 x86_64 GNU/Linux

benmctee@ubuntu-server:~$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC889 Analog [ALC889 Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: Intel [HDA Intel], device 1: ALC889 Digital [ALC889 Digital]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 3: NVIDIA HDMI [NVIDIA HDMI]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 7: NVIDIA HDMI [NVIDIA HDMI]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 8: NVIDIA HDMI [NVIDIA HDMI]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: NVidia [HDA NVidia], device 9: NVIDIA HDMI [NVIDIA HDMI]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

benmctee@ubuntu-server:~$ cat /proc/asound/version
Advanced Linux Sound Architecture Driver Version 1.0.23.

benmctee@ubuntu-server:~$ head -n 1 /proc/asound/card*/codec#*
==> /proc/asound/card0/codec#2 <==
Codec: Realtek ALC889

==> /proc/asound/card1/codec#0 <==
Codec: Nvidia GPU 11 HDMI/DP

==> /proc/asound/card1/codec#1 <==
Codec: Nvidia GPU 11 HDMI/DP

==> /proc/asound/card1/codec#2 <==
Codec: Nvidia GPU 11 HDMI/DP

==> /proc/asound/card1/codec#3 <==
Codec: Nvidia GPU 11 HDMI/DP

Make/Model: Integrated optical audio in/out on an Intel DP55KG motherboard.

When I run:

alsamixer -Dhw

I am able to set all volumes except the SPDIF (which I believe IS the optical audio)... just something I thought was strange, and possibly a pointer to the problem.

[sites]

Just thought I'd tag along with this thread instead of starting a new one.

I created a guest account for others to use & when it's logged on there's no sound. The device output is listed as "dummy output stereo". "Internal Audio" is not listed as a device. Everything works fine in my admin account & I made sure the guest account has access to sound devices.

Anyone seen this before?