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

[Alan McConnell]

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


-- Package-specific info:
--- Begin additional package status ---
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name           Version      Architecture Description
+++-==============-============-============-=================================
ii  libasound2:i38 1.0.25-4     i386         shared library for ALSA applicati
--- End additional package status ---
--- Begin /proc/asound/version ---
Advanced Linux Sound Architecture Driver Version 1.0.24.
--- End /proc/asound/version ---
--- Begin /proc/asound/cards ---
 0 [Intel          ]: HDA-Intel - HDA Intel
                      HDA Intel at 0xf7d14000 irq 43
 1 [Intel_1        ]: HDA-Intel - HDA Intel
                      HDA Intel at 0xf7d10000 irq 43
--- End /proc/asound/cards ---
--- Begin /dev/snd/ listing ---
total 0
drwxr-xr-x  2 root root       80 Nov  6 07:05 by-path
crw-rw---T+ 1 root audio 116,  3 Nov  6 07:05 controlC0
crw-rw---T+ 1 root audio 116,  8 Nov  6 07:05 controlC1
crw-rw---T+ 1 root audio 116,  2 Nov  6 07:05 hwC0D0
crw-rw---T+ 1 root audio 116,  7 Nov  6 07:05 hwC1D0
crw-rw---T+ 1 root audio 116,  6 Nov  6 09:06 pcmC1D0c
crw-rw---T+ 1 root audio 116,  5 Nov  6 13:05 pcmC1D0p
crw-rw---T+ 1 root audio 116,  4 Nov  6 07:05 pcmC1D2c
crw-rw---T+ 1 root audio 116,  1 Nov  6 07:05 seq
crw-rw---T+ 1 root audio 116, 33 Nov  6 07:05 timer
--- End /dev/snd/ listing ---

-- System Information:
Debian Release: 7.6
  APT prefers stable
  APT policy: (500, 'stable')
Architecture: i386 (i686)

Kernel: Linux 3.2.0-4-686-pae (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages alsa-base depends on:
ii  dpkg    1.16.15
ii  kmod    9-3
ii  procps  1:3.3.3-3
ii  udev    175-7.2

Versions of packages alsa-base recommends:
ii  alsa-utils  1.0.25-4

Versions of packages alsa-base suggests:
pn  alsa-oss    <none>
pn  oss-compat  <none>

Versions of packages libasound2 depends on:
ii  libc6              2.13-38+deb7u4
ii  multiarch-support  2.13-38+deb7u4

Versions of packages libasound2 suggests:
ii  libasound2-plugins  1.0.25-2

-- no debconf information

-- 
Alan McConnell :  http://globaltap.com/~alan/
   "Women run for office to do something, and men run for
   office to be somebody." (Debbie Walsh)


----- End forwarded message -----

-- 
Alan McConnell :  http://globaltap.com/~alan/
   "Women run for office to do something, and men run for
   office to be somebody." (Debbie Walsh)