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[FJLOMACTEP <flomasters@xxxxxxxxx>]

Public bug reported:

When not touching mouse and keyboard audio stuttering appears.
Stuttering appears when CPU load become slow down. In task manager i
have seen normal cpu load approx 20-30 % and 3% when audio stuttering
comes. When did not touch keyboard and mouse audio stuttering appears at
4 or 8 or 2 sec. and continues 4 - 5 sec. and this effect looping. I
have tried kernells: 3.19.0-15; 3.19.0-21; 4.1.0-040100rc8.

Sound cards recognized by the system:
00:07.0 Audio device [0403]: NVIDIA Corporation MCP72XE/MCP72P/MCP78U/MCP78S High Definition Audio [10de:0774] (rev a1)
Sound cards recognized by ALSA:
00:07.0 Audio device [0403]: NVIDIA Corporation MCP72XE/MCP72P/MCP78U/MCP78S High Definition Audio [10de:0774] (rev a1)
Sound cards recognized by ALSA, and activated:
00:07.0 Audio device [0403]: NVIDIA Corporation MCP72XE/MCP72P/MCP78U/MCP78S High Definition Audio [10de:0774] (rev a1)

00-00: ALC662 rev1 Analog : ALC662 rev1 Analog : playback 1 : capture 1
00-01: ALC662 rev1 Digital : ALC662 rev1 Digital : playback 1
00-02: ALC662 rev1 Alt Analog : ALC662 rev1 Alt Analog : capture 1
00-03: HDMI 0 : HDMI 0 : playback 1
   
alsactl version 1.0.29 or 1.0.28 - same effect.

3.19.0-21-generic #21-Ubuntu SMP Sun Jun 14 18:31:11 UTC 2015 x86_64
x86_64 x86_64 GNU/Linux

dmesg --level=err,warn: http://paste.debian.net/250409/
lspci                   http://paste.debian.net/250778/
lspci -v                http://paste.debian.net/250779/

** Affects: linux (Ubuntu)
     Importance: Undecided
     Assignee: FJLOMACTEP (flomasters)
         Status: New

** Changed in: linux (Ubuntu)
     Assignee: (unassigned) => FJLOMACTEP (flomasters)

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https://bugs.launchpad.net/bugs/1467376

Title:
  Stuttering looping sound when not touching mouse/keyoard

Status in linux package in Ubuntu:
  New

Bug description:
  When not touching mouse and keyboard audio stuttering appears.
  Stuttering appears when CPU load become slow down. In task manager i
  have seen normal cpu load approx 20-30 % and 3% when audio stuttering
  comes. When did not touch keyboard and mouse audio stuttering appears
  at 4 or 8 or 2 sec. and continues 4 - 5 sec. and this effect looping.
  I have tried kernells: 3.19.0-15; 3.19.0-21; 4.1.0-040100rc8.

  Sound cards recognized by the system:
  00:07.0 Audio device [0403]: NVIDIA Corporation MCP72XE/MCP72P/MCP78U/MCP78S High Definition Audio [10de:0774] (rev a1)
  Sound cards recognized by ALSA:
  00:07.0 Audio device [0403]: NVIDIA Corporation MCP72XE/MCP72P/MCP78U/MCP78S High Definition Audio [10de:0774] (rev a1)
  Sound cards recognized by ALSA, and activated:
  00:07.0 Audio device [0403]: NVIDIA Corporation MCP72XE/MCP72P/MCP78U/MCP78S High Definition Audio [10de:0774] (rev a1)

  00-00: ALC662 rev1 Analog : ALC662 rev1 Analog : playback 1 : capture 1
  00-01: ALC662 rev1 Digital : ALC662 rev1 Digital : playback 1
  00-02: ALC662 rev1 Alt Analog : ALC662 rev1 Alt Analog : capture 1
  00-03: HDMI 0 : HDMI 0 : playback 1
     
  alsactl version 1.0.29 or 1.0.28 - same effect.

  3.19.0-21-generic #21-Ubuntu SMP Sun Jun 14 18:31:11 UTC 2015 x86_64
  x86_64 x86_64 GNU/Linux

  dmesg --level=err,warn: http://paste.debian.net/250409/
  lspci                   http://paste.debian.net/250778/
  lspci -v                http://paste.debian.net/250779/

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