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A solution for no sound in Slackware 13.37
You will need to be root in order to make the following changes:
In order to get ALSA to detect and configure the card we must first run 'alsaconf'. Alsaconf has a database of cards in order to identify given hardware, but some hardware may not exist in this database, resulting in the following message:
In order to get alsaconf to see our card, we must first add it to the card database. After alsaconf has been run you will find /var/tmp/alsaconf.cards has been created, and this file contains the list of cards it can detect.
To find out some information about the card we must run 'lspci -nn' and search through to find the card:
00:1b.0 Audio device : Intel Corporation 82801JI (ICH10 Family) HD Audio Controller [8086:3a3e]
snd-hda-intel.o PCI: 0x8086=0x3a3e
Once this is added in, rerun 'alsaconf' and the card should now be discovered:
Run through the process and let it modify /etc/modprobe.d/sound.conf, and the sound card should now be configured. The levels can be set through 'alsamixer'
On my system I have a USB webcam with a built in microphone, and because this is loaded first it shows up as the primary device.
This can cause problems, such as when playing videos in Firefox the following message may appear:
ALSA lib pcm_dmix.c:1018:(snd_pcm_dmix_open) unable to open slaveCode:
options snd_hda_intel index=0 options snd_usb_audio index=1
The sound should now be fully working.
- Join Date
- Jan 2014
Sound vanished in my 13.37 installation. Each time I corrected the problem in alsamixer which read "This sound device does not have any playback controls," alsamixer lost its playback controls despite # alsactl store entered. The problem was a USB webcam which had a microphone and was preventing the right sound modules from being loaded. Disconnecting the webcam solved the problem. This was hard to find.