Bug#694741: pulseaudio: 100% use of my sound device Intel in powertop

[arnaud]

Package: pulseaudio
Version: 2.0-6
Severity: normal

Dear Maintainer,

   * What led up to the situation?
My fan is very noisy and my running time is highly reduced because my sound
device is using 100% of power (shown using powertop)

   * What exactly did you do (or not do) that was effective (or
     ineffective)?
When
echo 1 > /sys/module/snd_hda_intel/parameters/power_save
and
echo Y > /sys/module/snd_hda_intel/parameters/power_save_controller
and pulseaudio restarted, the problem is resolved.
Unfortunately, it is impossible to make it automatic. The value is always set
to default values 0 and N.
If the power supply is unplugged, it also disappears.

Many relative problems have been discussed here:
http://article.gmane.org/gmane.linux.alsa.devel/102984
http://thread.gmane.org/gmane.linux.alsa.devel/102984
https://bugs.launchpad.net/ubuntu/+source/powertop/+bug/536631/comments/13
https://bugs.launchpad.net/ubuntu/+source/powertop/+bug/536631


   * What was the outcome of this action?
We must repeat the same action after each start of the computer.

   * What outcome did you expect instead?
To get rid of this bug :)



-- System Information:
Debian Release: wheezy/sid
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 3.2.0-4-amd64 (SMP w/4 CPU cores)
Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages pulseaudio depends on:
ii  adduser                       3.113+nmu3
ii  consolekit                    0.4.5-3.1
ii  libasound2                    1.0.25-4
ii  libasound2-plugins            1.0.25-2
ii  libc6                         2.13-37
ii  libcap2                       1:2.22-1.2
ii  libdbus-1-3                   1.6.8-1
ii  libfftw3-3                    3.3.2-3.1
ii  libgcc1                       1:4.7.2-4
ii  libice6                       2:1.0.8-2
ii  libltdl7                      2.4.2-1.1
ii  liborc-0.4-0                  1:0.4.16-2
ii  libpulse0                     2.0-6
ii  libsamplerate0                0.1.8-5
ii  libsm6                        2:1.2.1-2
ii  libsndfile1                   1.0.25-5
ii  libspeexdsp1                  1.2~rc1-7
ii  libstdc++6                    4.7.2-4
ii  libsystemd-daemon0            44-5
ii  libsystemd-login0             44-5
ii  libtdb1                       1.2.10-2
ii  libudev0                      175-7
ii  libwebrtc-audio-processing-0  0.1-2
ii  libx11-6                      2:1.5.0-1
ii  libx11-xcb1                   2:1.5.0-1
ii  libxcb1                       1.8.1-2
ii  libxtst6                      2:1.2.1-1
ii  lsb-base                      4.1+Debian8
ii  udev                          175-7

Versions of packages pulseaudio recommends:
ii  gstreamer0.10-pulseaudio  0.10.31-3+nmu1
ii  pulseaudio-module-x11     2.0-6
ii  rtkit                     0.10-2

Versions of packages pulseaudio suggests:
pn  paman             <none>
pn  paprefs           <none>
pn  pavucontrol       <none>
pn  pavumeter         <none>
ii  pulseaudio-utils  2.0-6

-- Configuration Files:
/etc/default/pulseaudio changed:
PULSEAUDIO_SYSTEM_START=1
DISALLOW_MODULE_LOADING=1


-- no debconf information