Sound card is disabled

[laarriola]

Hello,

I've just installed 12.04. Didn't upgrade from 11.10 due to some network problems, so I burned a CD.

Sometimes I got a popup saying KDE detected that some of the internal devices were removed, asking to definitively forget this devices, I allways selected NO. Then go to systems settings -> multimedia -> phonon. After test channels, I could use amarok with no problems.

Today the icon of the sound card was shaded, only a dummy was OK. After remove pulseaudio, I got a lot of devices, but none of them works!!!!

If I choose HDA INTEL PCH (ALC892 Analog) it pops up a warning "device is not working, switching to "default"... Default does not works either...

How can I unintall-reinstall sound card? Should I remove-reinstall phonon?

Please let me know if there is a way to solve...

Thanks.

[james147]

I would first try reinstalling pulseaudio then create a new user and see if they have the same problem.

[laarriola]

I just did... there is only "dummy output" on both users now...

[laarriola]

I did a complete installation once again, and after some of the apt-get update/upgrade, internal audio is shadowed... I just don't know what of the packages is disabling sound card... is just >
some of the packages that uses phonon (or alsa) are: vlc, mencoder, mplayer, transcode, amarok, kopete.