I've had similar problems in *Kubuntu* between my Audigy 2 sound card and built-in VIA 8327 audio chip. To troubleshoot them I tried playing sounds at each level of the Linux audio stack. It helps to have speakers connected to every possible output.
ALSA: Use `aplay -L` to get a list of your output devices, and try playing through them, e.g. for me `aplay -vv -D front:CARD=Audigy2,DEV=0 /usr/share/sounds/SOME_WAVE_FILE.wav` plays on my Audigy2 card. Use `alsamixer` to see if anything's muted. More tips in http://alsa.opensrc.org/index.php/TroubleShooting PULSEAUDIO: Use `pacmd list-sinks` to get a list of your output devices, look for name: <xxx>, and then try playing through them, e.g. for me `paplay -d alsa_output.pci-0000_00_11.5.analog-stereo -v /usr/share/sounds/SOME_WAVE_FILE.wav` plays on my Audigy2 card. I can't help you with the higher levels of gnome, my understanding is there are tools like pavu and pavucontrol... I found PulseAudio preferred my Audigy 2 over my built-in VIA 8237, but I wanted the latter (I get screeching noises through my Audigy 2 output if there's any network activity). It turns out PA had decided to mute the built-in audio chip and sometimes this doesn't show up in the KDE mixer control. If that's your problem, look for muted: yes in the output of `pacmd list-sinks`. Once you've figured out the problem there are ways to get the audio layers to do the right thing ranging from (roughly) `asoundconf set-default-card Audigy2` in a .asoundrc file to `set-default-sink` in default.pa file, to messing with udev rules. Instead I just manually go in to the KMix GUI and unmute and choose a preferred device. I hope this helps, good luck! -- Pulseaudio is not running (second sound card without sound) https://bugs.launchpad.net/bugs/665751 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs