My onboard soundcard is busted (audio only works out of one channel), so I went and bought a $10 PCI soundcard. The relevant lspci entry is:
05:00.0 Multimedia audio controller: C-Media Electronics Inc CM8738 (rev 10)
At first alsa was trying to keep using my onboard Intel card, but with some modprobe.conf magic it was easy to switch the default to my C-Media card.
Audio works out of both channels just fine, but it keeps skipping (or hiccupping or stuttering, whatever you want to call it). This is reproducible at least for Flash (ie, Youtube) and Audacious.
I tried running Audacious in a terminal. Every time the audio skips, the following error appears:
ALSA lib pcm.c:7339:(snd_pcm_recover) underrun occurred
I thought maybe alsa was getting confused that there were two soundcards, so I tried unloading the modules for my onboard card. Same problem. I then tried disabling the onboard card in the BIOS entirely. Same problem.
I'm wondering if anyone can offer any tips on this. It's been driving me nuts and I've googled and googled and it seems that no one else in the world is having this issue.
I could go out and buy yet another
soundcard and take this one back, but by all accounts this seems to be a common chipset so I can't understand why I'm having this issue.
Slackware 14.0, 32-bit SMP kernel. No customizations.