One addition, /var/log/messages says: Dec 9 16:46:16 linux kernel: ALSA sound/core/pcm_lib.c:158: BUG: stream = 0, pos = 0xffe02b, buffer size = 0xfa0, period size = 0x3e8 When doing rcalsasound unload, errors occur: Shutting down sound driverERROR: Module snd_emu10k1 is in use ERROR: Module snd_rawmidi is in use by snd_emu10k1 ERROR: Module snd_seq_device is in use by snd_emu10k1,snd_rawmidi ERROR: Module snd_ac97_codec is in use by snd_emu10k1 ERROR: Module snd_pcm is in use by snd_emu10k1,snd_ac97_codec ERROR: Module snd_timer is in use by snd_emu10k1,snd_pcm ERROR: Module snd_ac97_bus is in use by snd_ac97_codec ERROR: Module snd_util_mem is in use by snd_emu10k1 ERROR: Module snd_hwdep is in use by snd_emu10k1 ERROR: Module snd is in use by snd_emu10k1,snd_rawmidi,snd_seq_device,snd_ac97_codec,snd_pcm,snd_timer,snd_util_mem,snd_hwdep Again, in console there is sound. What's up?