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howtos:hardware:sound_problems_on_slackware [2018/02/15 15:10 (UTC)]
alienbob [Sound Problems on Slackware] Add SBo link to alsaequal
howtos:hardware:sound_problems_on_slackware [2018/02/15 15:15 (UTC)]
alienbob Show how syntax elements can be used to beautify the page and make maintenance easier.
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 <!-- Add your text below. We strongly advise to start with a Headline (see button bar above). --> <!-- Add your text below. We strongly advise to start with a Headline (see button bar above). -->
 <!-- Reviewed 2012-12-24 hazel --> <!-- Reviewed 2012-12-24 hazel -->
 +<!-- Reviewed 2018-02-15 alienbob -->
  
 **NOTE: on my systems, my default card is 1 and default device is 0 so I will use 1,0 through out this page** **NOTE: on my systems, my default card is 1 and default device is 0 so I will use 1,0 through out this page**
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 **Investigate the problem** **Investigate the problem**
  
-1) See which kernel modules are loaded: +  - See which kernel modules are loaded: ​<​code>​ 
- + lsmod | grep snd 
-     lsmod | grep snd +</​code> ​Use this information along with your motherboard sound chipset to verify that the correct sound drivers are loading. 
- +  ​- ​See which sound devices are detected by alsa:<​code>​ 
-Use this information along with your motherboard sound chipset to verify that the correct sound drivers are loading. +aplay -l 
- +</​code> ​Most likely, alsa is loading the correct modules but setting the wrong sound device as default. 
- +  ​- ​Test sound devices to see which one(s) work:<​code>​ 
-2) See which sound devices are detected by alsa: +alsamixer 0 
- +<​F6>​ 
-     aplay -l +<select a card(s)>​ 
- +<adjust volumes and make sure they aren't muted> 
-Most likely, alsa is loading the correct modules but setting the wrong sound device as default. +<ESC>
- +
-3) Test sound devices to see which one(s) work: +
- +
-     alsamixer 0 +
-     ​<​F6>​ +
-     ​<select a card(s)>​ +
-     ​<adjust volumes and make sure they aren't muted> +
-     ​<ESC>+
            
-     aplay -D plughw:0,0 test.wav ​  ​(WHERE 0,0 is card/slot 0, device 0 and test.wav is a sound file e.g. /​usr/​share/​sounds/​alsa/​Noise.wav) +aplay -D plughw:0,0 test.wav ​  ​(WHERE 0,0 is card/slot 0, device 0 and test.wav is a sound file e.g. /​usr/​share/​sounds/​alsa/​Noise.wav) 
-     ​aplay -D plughw:0,1 test.wav +aplay -D plughw:0,1 test.wav 
-     ​aplay -D plughw:1,0 test.wav +aplay -D plughw:1,0 test.wav 
-     ​aplay -D plughw:1,1 test.wav +aplay -D plughw:1,1 test.wav 
 +</​code>​
  
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