>The strange thing is that earlier you got some sound from chrome, andes if I understood correctly, you had pavucontrol open. If you have pavucontrol open, and you can see activity in the mic volume meter, it means that pulseaudio is using the microphone, and usually other applications can't use the microphone at the same time if they try to use the hardware directly, bypassing pulseaudio. Maybe in that instance chrome managed to create a recording stream in pulseaudio? I did it again to be sure, and yes, pavucontrol runs and shows input, and at the same time bigbluebutton runs on chrome and echoes my voice with a cracking sound And yes, there is an error nmessage in my terminal (please look at latest line) /usr/bin/google-chrome-stable %U [2613:2613:0215/125529.812664:ERROR:gl_surface_glx.cc(406)] glxQueryVersion failed [2613:2613:0215/125529.812964:ERROR:gl_initializer_x11.cc(130)] GLSurfaceGLX::InitializeOneOff failed. [2613:2613:0215/125529.829241:ERROR:gpu_child_thread.cc(327)] Exiting GPU process due to errors during initialization [2527:2561:0215/125530.039051:ERROR:browser_gpu_channel_host_factory.cc(113)] Failed to launch GPU process. [2527:2561:0215/125530.049017:ERROR:browser_gpu_channel_host_factory.cc(113)] Failed to launch GPU process. [2527:2561:0215/125530.057225:ERROR:browser_gpu_channel_host_factory.cc(113)] Failed to launch GPU process. [2527:2561:0215/125530.059328:ERROR:browser_gpu_channel_host_factory.cc(113)] Failed to launch GPU process. [2527:2561:0215/125530.061832:ERROR:browser_gpu_channel_host_factory.cc(113)] Failed to launch GPU process. [2527:2561:0215/125530.064292:ERROR:browser_gpu_channel_host_factory.cc(113)] Failed to launch GPU process. [WARNING:flash/platform/pepper/pep_module.cpp(63)] SANDBOXED [WARNING:flash/platform/pepper/pep_module.cpp(63)] SANDBOXED [1:23:0215/125626.008144:ERROR:audio_send_stream.cc(90)] Failed to set up send codec state. -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://lists.freedesktop.org/archives/pulseaudio-discuss/attachments/20170215/56850009/attachment.html>