[Pkg-alsa-devel] Bug#768383: Bug#768383: (alsa-base: sound is mixed with crackling static)

[Elimar Riesebieter]

* Alan McConnell <alan at his.com> [2014-11-06 18:30 -0500]:

> Package: alsa-base
> Version: 1.0.25+3~deb7u1
> Severity: important
> 
> 
> 	Difficulties with sound on new Wheezu install
> 
> My sound, which worked perfectly on Squeeze, now is
> "staticky/crackily" interrrupted, and unclear.  I took my new
> computer to Microcenter in Rockville MD, and they swapped out the
> motherboard.  Before returning it to me they tested the sound
> system with a Ubuntu disk they had and reported that the
> sound was very imperfect, describing it as I have above.  But
> they also tested it with a M$ tester, and they reported that
> the sound using M$ was perfectly clear and normal.
> 
> I am reporting this as a bug with ALSA, but pulseaudio may be
> at fault.  
> 
> Technical info(results of a call to report-hw):
> lspci -knn: 00:1b.0 Audio device [0403]: Intel Corporation Device [8086:8ca0]
> lspci -knn:     Subsystem: Micro-Star International Co., Ltd. Device [1462:d850]
> lspci -knn:     Kernel driver in use: snd_hda_intel
> 
> lsmod: snd_hda_intel          21786  2
> 
> lsmod: snd_hda_codec          63477  2 snd_hda_intel,snd_hda_codec_realtek
> lsmod: snd_hwdep              12943  1 snd_hda_codec
> lsmod: snd_pcm                53461  2 snd_hda_codec,snd_hda_intel
> 
> I have two soundcards, both HDA Intel

Could you pleさse test as follows:

Run as user:
$ pulseaudio -k
Check whether pulse is running, but it should not:
$ ps aux | grep pulse
Test sound with an alsa application / plugin

Elimar
-- 
 The path to source is always uphill!
                                -unknown-