My soundcard (nVidia MCP 51) was working great, and now I've broken something! cat /proc/asound/cards gives:
$ cat /proc/asound/cards
0 [NVidia ]: HDA-Intel - HDA NVidia
HDA NVidia at 0xfebd8000 irq 233
But aplay -l gives:
$ aplay -l
aplay: device_list:222: no soundcards found...
What's ...