(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. -- You received this bug notification because you are a member of Ubuntu Studio Bugs, which is subscribed to pavucontrol in Ubuntu. Matching subscriptions: Ubuntu Studio Bugs 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) To manage notifications about this bug go to: https://bugs.launchpad.net/pulseaudio/+bug/1504175/+subscriptions -- Mailing list: https://launchpad.net/~ubuntustudio-bugs Post to : [email protected] Unsubscribe : https://launchpad.net/~ubuntustudio-bugs More help : https://help.launchpad.net/ListHelp
