I have disabled artsd now in KDE by starting kcontrol -> Sound & Multimedia -> Sound System -> Unchecked "Enable the sound system". After a reboot I verified that artsd was not running anymore. Still, I do not hear any sound though, when running aplay or play. # /etc/init.d/alsasound stop Shutting down sound driver: /etc/init.d/alsasound: line 163: 2896 Segmentation fault /sbin/rmmod `echo $line | cut -d ' ' -f 1` ERROR: Module snd_seq_midi_event is in use by snd_seq_oss ERROR: Module snd_seq is in use by snd_seq_oss,snd_seq_midi_event ERROR: Module snd_seq_device is in use by snd_seq_oss,snd_seq ERROR: Module snd_timer is in use by snd_seq ERROR: Module snd is in use by snd_seq_oss,snd_seq,snd_seq_device,snd_timer done When I try again it hangs (also aconnect --removeall hangs then). Perhaps this is because the alsa sources 1.0.12.rc1 I installed myself have overwritten the .rpm files that I had installed before. There might be version conflicts, I have no clue how to check that. # rpm -qf /etc/init.d/alsasound file /etc/init.d/alsasound is not owned by any package The mixer properties that I have are (none of them are muted in alsamixer): # amixer Simple mixer control 'PCM',0 Capabilities: pvolume Playback channels: Front Left - Front Right Limits: Playback 0 - 255 Mono: Front Left: Playback 255 [100%] Front Right: Playback 255 [100%] Simple mixer control 'Front',0 Capabilities: pvolume pswitch Playback channels: Front Left - Front Right Limits: Playback 0 - 31 Mono: Front Left: Playback 31 [100%] [on] Front Right: Playback 31 [100%] [on] Simple mixer control 'Line',0 Capabilities: pvolume pswitch Playback channels: Front Left - Front Right Limits: Playback 0 - 31 Mono: Front Left: Playback 31 [100%] [on] Front Right: Playback 31 [100%] [on] Simple mixer control 'Mic',0 Capabilities: pvolume pswitch Playback channels: Front Left - Front Right Limits: Playback 0 - 31 Mono: Front Left: Playback 31 [100%] [on] Front Right: Playback 31 [100%] [on] Simple mixer control 'IEC958',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [on] Simple mixer control 'Capture',0 Capabilities: cvolume cswitch Capture channels: Front Left - Front Right Limits: Capture 0 - 31 Front Left: Capture 0 [0%] [on] Front Right: Capture 0 [0%] [on] Simple mixer control 'Capture',1 Capabilities: cvolume cswitch Capture channels: Front Left - Front Right Limits: Capture 0 - 31 Front Left: Capture 0 [0%] [on] Front Right: Capture 0 [0%] [on] Simple mixer control 'Input Source',0 Capabilities: enum Items: 'Mic' 'Line' Item0: 'Mic' Simple mixer control 'Input Source',1 Capabilities: enum Items: 'Mic' 'Line' Item0: 'Mic' Thanks for helping me, JeeBee. On Tue, 25 Jul 2006 13:45:27 +0200, Nigel Henry wrote: > Here I would have suggested, if your using KDE, to make sure that the aRts > sound server is not running, as the card is not capable of hardware mixing, > and aRts would interfere with other apps, as it grabs the sound card. > But I would have expected some sort of error from Aplay in that case. > > It's probably worth checking alsamixer on the CLI. I don't know what > sliders and switches are there for that card. The "external amplifier" > switch sometimes causes problems, and is worth unmuting that. Hit M to > toggle the switches, and make sure that sliders like "master" , "PCM" , > and "front" are up.