-----Original Message----- From: John Frankish Sent: Monday, 22 October, 2012 11:38 To: General PulseAudio Discussion Cc: 'David Henningsson' Subject: RE: Linking Channels Block Mono Microphone > > On 10/22/2012 08:50 AM, John Frankish wrote: > > Using pulseaudio-2.1 with a dell latitude e6220 and the internal mono microphone: > > > > The pavucontrol "configuration" tab correctly shows the internal microphone as mono. > > > > The pavucontrol "input" tab incorrectly assumes the internal > > microphone is stereo and any input is blocked until the "link channels" icon is clicked in order to unlink the channels. > > > > From google I can see that several people have seen the same problem, but I don't see a solution/bug fix anywhere. > > > > Is there some way to add/edit/modify a configuration file to avoid > > having to remember to unlink the microphone channels every time? > > We do this through a kernel patch usually. Can you submit alsa-info > (see https://wiki.ubuntu.com/Audio/AlsaInfo )? > Thanks for the reply, please see: http://www.alsa-project.org/db/?f=de69a107ac63f0a3629cd16fe9b89d23ccef5888 --------- I upgraded to pulseaudio-2.1 and tried on another machine and the result is the same. Furthermore, looking in the "input devices" tab (see attached screenshot): 1. The usb headset microphone is correctly shown as a mono microphone, but the input level strip is missing. 2. The internal sound card microphone input level strip is present. Looking at the "recording" tab (see attached screenshot): 1. The usb headset microphone is incorrectly shown as a stereo microphone 2. The input level strip is missing. 3. Even if I unlink the stereo channel lock, the input is not recorded. 4. If I swap to the internal sound card microphone, the input level strip reappears. The Logitech usb headset must be a pretty common device, but its use appears broken as far as pulseaudio-2.0/2.1 are concerned? -------------- next part -------------- A non-text attachment was scrubbed... Name: pulseaudio_usb_headset_input_devices.png Type: image/png Size: 38254 bytes Desc: pulseaudio_usb_headset_input_devices.png URL: <http://lists.freedesktop.org/archives/pulseaudio-discuss/attachments/20121025/43ece6a0/attachment-0002.png> -------------- next part -------------- A non-text attachment was scrubbed... Name: pulseaudio_usb_headset_recording.png Type: image/png Size: 22271 bytes Desc: pulseaudio_usb_headset_recording.png URL: <http://lists.freedesktop.org/archives/pulseaudio-discuss/attachments/20121025/43ece6a0/attachment-0003.png>
