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On Mon, 2011-10-24 at 20:35 +0800, Lavender wrote: |
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> I have asked the question in gentoo forum , but |
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> it seems that very few people like hanging around |
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> in forums , I didn't get useful method. |
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> My sound card can't work normally , when I use music |
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> player there is no sound . |
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> Someone said that I need low-level codec support , I'm not |
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> sure whether it is. Here is the information in sysfs, I really |
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> hope you can know where the problem is. |
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> |
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> # ls /sys/class/sound |
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> audio card0 card1 controlC0 controlC1 |
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> dsp hwC0D0 hwC1D0 mixer mixer1 |
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> pcmC0D0c pcmC0D0p pcmC1D3p |
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> seq sequencer sequencer2 timer |
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> |
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> # ls -l /sys/class/sound/card0 |
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> lrwxrwxrwx 1 root root 0 Oct 25 03:37 card0 |
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> -> ../../devices/pci0000:00/0000:00:14.2/sound/card0 |
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> |
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> # ls /sys/class/sound/card0/ |
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> audio controlC0 device dsp |
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> hwC0D0 id mixer number |
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> pcmC0D0c pcmC0D0p power |
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> subsystem uevent |
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> ----Regards---- |
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> ----Lavender---- |
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> |
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> |
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When you go in into the kernel config, there is the option for Intel |
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AC97-like sound, which I believe is what the majority of sound cards |
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use. For AC97 there are "codecs" in the kernel config. A safe choice |
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is to select them all. |
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|
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The output you gave is not very helpful or informative, but I'll ask |
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just a few questions/suggestions: |
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|
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* Looks like maybe you have 2 sound cards. Are you going through |
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the correct card for output? |
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* Did you go into alsamixer to verify that the appropriate outputs |
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are unmuted? |
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* Try "aplay" or "speaker-test" or something else low-level to see |
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if even basic output is working. It could be your sound card is |
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fine but you don't have the correct support for whatever music |
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player you are using. |
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