[SOLVED] Internal Speaker (pcsp) not working

Question

UPDATE: solved muting all Analog Loopback channels in alsamixer
Hi everybody,
i'm tuning the lucky arch installation on a DELL Studio XPS 13. No troubles in video card configuration, neither in wireless drivers, but i'm getting big problems with audio playback. I mean every kind of audio playback.
I firstly read out the docs and topics around here but couldn't find a solution. Alsaconf says ok, alsamixer channels activated and configuration stored, but audio playing software (kde sounds, juk, amarok, vlc,  flashplugin) is not producing any sound. As these softwares are not complaining about audio matters, and the multimedia module in Kde Control is describing  this only as not working, i suppose the cause must be pcsp (which i disabled rc.conf).
Some more info:
bash-3.2# lsmod | grep snd
snd_hda_codec_nvhdmi 2740 1
snd_hda_codec_idt 55732 1
snd_seq_oss 29888 0
snd_seq_midi_event 5972 1 snd_seq_oss
snd_seq 48176 4 snd_seq_oss,snd_seq_midi_event
snd_seq_device 6080 2 snd_seq_oss,snd_seq
snd_hda_intel 25384 2
snd_hda_codec 60340 3 snd_hda_codec_nvhdmi,snd_hda_codec_idt,snd_hda_intel
snd_hwdep 6904 1 snd_hda_codec
snd_pcm_oss 38112 0
snd_pcm 67992 3 snd_hda_intel,snd_hda_codec,snd_pcm_oss
snd_timer 19260 2 snd_seq,snd_pcm
snd_page_alloc 8092 2 snd_hda_intel,snd_pcm
snd_mixer_oss 14388 1 snd_pcm_oss
snd 51460 15 snd_hda_codec_idt,snd_seq_oss,snd_seq,snd_seq_device,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm_oss,snd_pcm,snd_timer,snd_mixer_oss
soundcore 6080 1 snd
bash-3.2# cat /etc/modprobe.conf
# /etc/modprobe.conf (for v2.6 kernels)
options snd-pcsp index=2
bash-3.2# cat /etc/modprobe.conf
# /etc/modprobe.conf (for v2.6 kernels)
options snd-pcsp index=2
Any help is really appreciated, thank you
Miche
Last edited by Miche (2009-05-03 09:48:53)

Answer 1

mcover wrote:
snd-pcsp and pcspkr both claim the same hardware and are both responsible for making your machine "beep" - i disabled both of them. you don't need them for your audio-playback. looking for issues of your sound-output by suspecting snd-pcsp or pcspkr is a dead end.
getting sound can sometimes be an adventure, i had that problem before. but often it just turns out to be some well hidden mute switch in alsamixer or some volume settings. it might be a problem with kde4's sound server. i don't use kde4 on a regular basis, so i can't help too much with that (back when i used kde3 i had to configure aRts but kde4 discontinued aRts in favor of phonon).
absolutly needed quotation as in the end it has been discovered that in-activating Analog Loopback channels in alsamixer solved the problem
i'm not sure this was the unique step in order to get alsa working (i read and followed suggentions from many many forums and wikis) but finally i found a post where the problem for a sound blaster owner was solved disabling the iec958 channel. That was the input for a deeper research in alsamixer configuration.
Thank you very much. keep enjoyng archlinux.
Miche