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I'm running Lubuntu 10.10 on a HP Compaq nx6325. I use it to digitize tape records - connecting the tape deck's headphone output to the notebook's microphone input. Audacity then records the 45 minutes of sound.
However, from time to time, audio input just disappears. There is no data incoming; instead of audacity recording silence, the track cursor completely stops in its way. When using gnome-sound-recorder, the clock counter stays greyed out even though I start recording. Issuing
sudo alsa force-reload
fixes things again. The system logs show little useful, although I can post the more relevant parts if asked. Software playthrough in Audacity is disabled, otherwise even force-reloading doesn't help.
Does alsa (or pulseaudio) have some kind of log somewhere? Can I make one? Is there any other or better way to find the problem?