Me dá a resposta desse aqui, também:
lsmod | grep snd
EDITADO:
O procedimento apresentado pelo Pithecanthropus pode funcionar. Tenta aí!
Olha o deu esse
deck@deck:~$ lsmod | grep snd
snd_intel8x0 33564 1
snd_ac97_codec 99492 1 snd_intel8x0
ac97_bus 2304 1 snd_ac97_codec
snd_pcm_oss 43264 0
snd_mixer_oss 16640 1 snd_pcm_oss
snd_pcm 77320 3 snd_intel8x0,snd_ac97_codec,snd_pcm_oss
snd_seq_dummy 3844 0
snd_seq_oss 31872 0
snd_mpu401 8744 0
snd_mpu401_uart 8576 1 snd_mpu401
snd_seq_midi 8704 0
snd_seq_midi_event 7552 2 snd_seq_oss,snd_seq_midi
snd_rawmidi 24832 2 snd_mpu401_uart,snd_seq_midi
snd_seq 50416 6 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event
snd_timer 22916 2 snd_pcm,snd_seq
snd_seq_device 8332 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq
snd 52356 14 snd_intel8x0,snd_ac97_codec,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_seq_oss,snd_mpu401,snd_mpu401_uart,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
soundcore 7520 1 snd
snd_page_alloc 10504 2 snd_intel8x0,snd_pcm
deck@deck:~$