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#1 2009-06-29 09:33:27

JAcky
Member
Registered: 2009-06-29
Posts: 12

Solution for sound issue with MCP78S chip

I have had sound problems where sound would work sometimes then stop working for no reason. Or it would work after I changed the device order in KDE4 but it would only work for KDE4 programs not VLC or console apps.

Output of
# lspci
is

00:07.0 Audio device: nVidia Corporation MCP78S [GeForce 8200] High Definition Audio (rev a1)

I installed the alsa package with pacman and noticed that alsamixer would use my PC speaker as the default device.

So my solution to this issue is to blacklist the pc speaker module, this will stop the damn beeping when I use the console and fixed the sound issue.
Open rc.conf and blacklist the modules
MODULES=( !pcspkr !snd_pcsp )

That is it, the modules will no longer be loaded and sound should be working fine after a reboot.

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#2 2009-07-27 18:56:02

princeamd
Member
From: Guyana
Registered: 2009-06-08
Posts: 57

Re: Solution for sound issue with MCP78S chip

i am having problems with this same chipset on my laptop, it plays but it skips some sound, and sometimes it stops completely, very annoying, i have not found any solution to this problem as yet hmm

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