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toothpick
n00b
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Joined: 31 May 2012
Posts: 53

PostPosted: Wed Apr 22, 2015 11:36 pm    Post subject: [SOLVED] Sound disabled Reply with quote

Since I have updated my world, I cannot hear sound from my speakers.
I have done the following steps to diagnose the problem:

Code:
aplay /dev/urandom
produces no sound

Code:
lspci -kvv

produces the following outout: http://tny.cz/22354bcc

what weird is that "lsmod" does not show "snd_hda_intel" even after "modprobe snd_hda_intel"

I appreciate anyone's help :)


Last edited by toothpick on Sun Apr 26, 2015 7:47 pm; edited 1 time in total
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krinn
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Joined: 02 May 2003
Posts: 7470

PostPosted: Thu Apr 23, 2015 7:41 am    Post subject: Reply with quote

Quote:
Kernel driver in use: snd_hda_intel

It mean the driver is in use by your kernel.

But the output if the driver is a module would be:
Quote:
Kernel driver in use: snd_hda_intel
Kernel modules: snd_hda_intel


So to answer your question: it doesn't appears in lsmod because the driver isn't a module but buildin your kernel.

To answer your other question (why no sound?), we lack info to answer it.
It's a bit surprising you just do an emerge world and you are surprise by the result the kernel isn't a module, as an emerge world may add a new kernel source, but in no way will built one and load it.

aplay should had produce you an error (and as kernel is telling you, the driver is in use for the card), so from a driver pov, it works (producing no sound while playing is not the same as getting an error).
It might just be volume is down or default card is not the one where the speakers are plug to, or just that your speakers aren't connect to the card output.
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toothpick
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Joined: 31 May 2012
Posts: 53

PostPosted: Sun Apr 26, 2015 7:31 pm    Post subject: Reply with quote

Thanks for your reply,
using alamixer I have raised all the bars and unmuted them (nor I recall that I have changed my mixer settings)
finally, sound works :)
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