ubuntustudio-bugs team mailing list archive

[David Henningsson <1504175@xxxxxxxxxxxxxxxxxx>]

(In reply to flocculant from comment #5)
> Created attachment 120182 [details]
> pulse verbose log
> 
> Hard to know exactly when it was. But I tried to stop the logging almost
> immediately after I had started pavucontrol and got the mute going on. Hope
> that helps.

Thanks. It seems the big hickup (about 2 seconds) is below. Because
pavucontrol starts recording from all sources, that includes the usb
webcam mic. Just to check if this is the actual cause, could you try
disconnecting the webcam and see if the problem goes away?

(  22.253|   0.000) I: [pulseaudio] source-output.c: Trying to change sample rate
(  22.253|   0.000) D: [pulseaudio] module-suspend-on-idle.c: Source alsa_input.usb-046d_0825_121F40B0-02.analog-mono becomes busy, resuming.
(  22.253|   0.000) D: [pulseaudio] source.c: Suspend cause of source alsa_input.usb-046d_0825_121F40B0-02.analog-mono is 0x0000, resuming
(  22.254|   0.000) D: [pulseaudio] reserve-wrap.c: Successfully acquired reservation lock on device 'Audio2'
(  22.254|   0.000) I: [alsa-source-USB Audio] alsa-source.c: Trying resume...
(  22.345|   0.091) D: [alsa-sink-Multichannel] protocol-native.c: Implicit underrun of ''Es Vedra' by 'The Orb Featuring David Gilmour''
(  22.815|   0.470) I: [alsa-source-USB Audio] alsa-util.c: Disabling tsched mode since BATCH flag is set
(  22.816|   0.000) D: [alsa-source-USB Audio] alsa-util.c: Maximum hw buffer size is 10922 ms
(  24.127|   1.311) D: [alsa-source-USB Audio] alsa-util.c: Set buffer size first (to 4797 samples), period size second (to 1199 samples).
(  24.131|   0.003) D: [alsa-source-USB Audio] alsa-source.c: hwbuf_unused=0
(  24.131|   0.000) D: [alsa-source-USB Audio] alsa-source.c: setting avail_min=1
(  24.131|   0.000) I: [alsa-source-USB Audio] alsa-source.c: Resumed successfully...
(  24.131|   0.000) I: [alsa-source-USB Audio] alsa-source.c: Starting capture.

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https://bugs.launchpad.net/bugs/1504175

Title:
  Starting pavucontrol creates sound drop-out [related to C270/C910
  Logitech webcam]

Status in PulseAudio:
  Incomplete
Status in pavucontrol package in Ubuntu:
  Confirmed

Bug description:
  With some media playing, start pavucontrol. Seen on hardware and
  virtual machine

  Sound mutes momentarily then restarts.

  Previous behaviour:

  No muting of playing sound when pavucontrol starts.


  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: pavucontrol 3.0-3build1
  ProcVersionSignature: Ubuntu 4.2.0-14.16-generic 4.2.2
  Uname: Linux 4.2.0-14-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.19-0ubuntu1
  Architecture: amd64
  CurrentDesktop: XFCE
  Date: Thu Oct  8 15:51:43 2015
  InstallationDate: Installed on 2015-10-01 (6 days ago)
  InstallationMedia: Xubuntu 15.10 "Wily Werewolf" - Alpha amd64 (20151001)
  SourcePackage: pavucontrol
  UpgradeStatus: No upgrade log present (probably fresh install)

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