Ubuntu 9.10 Karmic Koala-No Sound

[Gandalf_the_Grey]

I just completed the upgrade to Ubuntu 9.10, and now I don't hear any sound. My speakers are plugged in, the Ubuntu system volume is at 100%, and I still don't hear a thing from Totem, Rhythmbox, or SuperTux. My sound card is a C-Media CM8738.

[vor_lord]

I have the exact same problem, same sound card.

Alsa picks up the sound card just fine, but the new sound preferences do not show it at all (only my onboard sound):

strongbad:home/brett> cat /proc/asound/cards
 0 [CMI8762        ]: CMI8738-MC8 - C-Media CMI8762
                      C-Media CMI8762 at 0xe800, irq 16
 1 [Intel          ]: HDA-Intel - HDA Intel
                      HDA Intel at 0xf9ff8000 irq 22
strongbad:home/brett> cat /proc/asound/modules
 0 snd_cmipci
 1 snd_hda_intel

If I blacklist the on board sound, then only a dummy null output is available in the sound preferences.

Alsa seems fine with the cmedia, but for some reason the whole pulseaudio system and sound preferences don't see it.



I did attempt both solutions for the second item listed on:
http://drowninginbugs.blogspot.com/2...io-in-910.html:

Check that slmodemd is not running if you're seeing a dummy/null sink in the volume control applet. Arguably PulseAudio's module-udev-detect should allow the device instead of bailing when detecting it, and an approach is under discussion for future versions. In the meantime, you can either instead load module-detect in /etc/pulse/default.pa (or ~/.pulse/default.pa) or kill slmodemd.

If I load module-detect, then the sound preferences simply says "Waiting for sound subsystem" and I get no sound configuration at all.

I could not find slmodemd running, nor could I find it in the init subsystem, so I could not try that one.

I'm not really sure it is related, but if you only had a single sound card that was CMI, it would look just like this issue.

[claud10]

Hi everyone,

I had the same problem in Kubuntu. Seems like pulse is not installed by default or it remains at an old version. Simply run

sudo apt-get install pulseaudio

Then, open Kmix (gnome volume control in Ubuntu) and make sure that Master, PCM and Speaker channels are ON.

The reinstall of the pulse sound server should have added a new entry in the Devices List found at System Settings->Multimedia, called "Playback/recording through the PulseAudio Sound Server". use this as default sound server and voilà.

That solved the problem for me (I repeat, in Kubuntu Karmic)

[Gandalf_the_Grey]

Solved!

How I got sound:

Run "alsamixer" in the terminal, then turn up PCM.

Problem solved!

[Gandalf_the_Grey]

OK, not quite solved...

My YouTube videos now have sound, but it sounds like static, mixed with the tiniest bit of the original sound of the video. If I download it to my computer, it still has the static. This video sounds just fine under Ferdora 10. Also, Pingus has some slight static on certain notes of the main menu soundtrack, and SuperTux just sounds like a motorboat.

At least my MP3 files now work...

claud10: PulseAudio already installed and latest version, PCM, Master, and Speaker all on. No change in symptoms.

[vor_lord]

Gandalf,

For the overdriven (i.e. static sound) problem, check out the link I posted in my first post. One of the items there might help you.

[Gandalf_the_Grey]

OK, found another simple solution.

I installed the package paman, then loaded the PulseAudio Volume Control.

I then turned up System Sounds to 100%, then loaded http://www.youtube.com/watch?v=NRpTn75W9Dg, and... NO STATIC!!!! Pingus fixed, Totem fixed, YouTube fixed, etc.

Thanks for the help.

[debayanm]

hi all,

I have a dell inspiron 1525, quite new, 2 GB ram 160 GB HDD, core 2 due T 5750 processor, 2 MB Cache, etc etc

I downloaded ubuntu 9.10 desktop version and ubuntu 9.10 netbook version..They are in ISO version..but when i am running them using DAEMON tools lite, and restarting system, they UBUNTU is just showing a small logo and after that , system is going black..

Plz help..

[kaapstorm]

Thanks furoraest, that did the trick for me:

sudo alsa force-reload

My symptoms are the same as yours. Audio works when I boot up, and then a day or two later, PulseAudio "loses" my hardware. "lspci" shows it, "aplay -l" shows it. gnome-volume-control an paman can't see it, and show only dummy audio.

Unlike most of the posters on the thread, I really like the Karmic's audio control! I like that I can set different applications' volume, and that I have one master volume instead of hundreds of volume sliders for PCM, Master, Front, CD, etc. etc. etc. And Skype! Wow! The slog that it took to find exactly which sliders and checkboxes to tweak to get my microphone to work. Now I just select "Microphone 1" and set the input volume. What a pleasure!

So I'm sorry for the loads of people who are having trouble. I'm sure the people at Canonical/Ubuntu are feeling very guilty about your problems. But for those who persist, and manage to get PulseAudio working for them, there is, at least IMHO, a reward: finally a decent audio interface.