Bug 544554 - Internal audio does not function if webcam is plugged in when machine is powered on.
Summary: Internal audio does not function if webcam is plugged in when machine is powe...
Alias: None
Product: Fedora
Classification: Fedora
Component: pulseaudio
Version: 14
Hardware: x86_64
OS: Linux
Target Milestone: ---
Assignee: Jaroslav Kysela
QA Contact: Fedora Extras Quality Assurance
Depends On:
TreeView+ depends on / blocked
Reported: 2009-12-05 11:41 UTC by mcisho
Modified: 2012-08-16 18:28 UTC (History)
4 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2012-08-16 18:28:18 UTC
Type: ---

Attachments (Terms of Use)

Description mcisho 2009-12-05 11:41:34 UTC
Description of problem:
I have a Logitech Webcam C220, which has a built-in microphone. If the webcam is plugged in when the machine is powered on the internal audio is not detected and/or does not function. System -> Preferences -> Sound -> Hardware tab only shows the webcam device, it does not show the internal audio. If the webcam is not plugged in when the machine is powered on the internal audio is detected, functions correctly and appears on the Hardware tab. If the webcam is subsequently plugged in it also appears on the Hardware tab and functions correctly. I don't want to use the microphone in the webcam and the profile is set to Off on the Hardware tab.

Motherboard is an Asus M2N-E, lshw (edited) produces:-
      description: Audio device
      product: MCP55 High Definition Audio
      vendor: nVidia Corporation
      physical id: 6.1
      bus info: pci@0000:00:06.1
      version: a2
      width: 32 bits
      clock: 66MHz
      capabilities: bus_master cap_list
      configuration: driver=HDA Intel latency=0 maxlatency=5 mingnt=2
      resources: irq:22 memory:fe024000-fe027fff
      description: USB Controller
      product: MCP55 USB Controller
      vendor: nVidia Corporation
      physical id: 2.1
      bus info: pci@0000:00:02.1
      version: a2
      width: 32 bits
      clock: 66MHz
      capabilities: ehci bus_master cap_list
      configuration: driver=ehci_hcd latency=0 maxlatency=1 mingnt=3
      resources: irq:23 memory:fe02e000-fe02e0ff
         product: EHCI Host Controller
         vendor: Linux ehci_hcd
         physical id: 1
         bus info: usb@1
         logical name: usb1
         version: 2.06
         capabilities: usb-2.00
         configuration: driver=hub slots=10 speed=480.0MB/s
            description: Video
            vendor: Logitech, Inc.
            physical id: 9
            bus info: usb@1:9
            version: 0.09
            serial: FC432F50
            capabilities: usb-2.00
            configuration: driver=snd-usb-audio maxpower=500mA speed=480.0MB/s

What other output, if any, would you like me to provide?  

Version-Release number of selected component (if applicable):
Fedora 12, x86_64, yum updated regularly.

How reproducible:

Steps to Reproduce:
1. Plug in USB webcam
2. Power on machine
Actual results:
No sound from internal audio.

Expected results:

Additional info:

Comment 1 mcisho 2010-07-07 15:17:30 UTC
I recently upgraded the machine to Fedora 13 and the same problem still exists.

Comment 2 mcisho 2010-12-16 16:55:02 UTC
I recently upgraded the machine to Fedora 14 and the problem is fixed. Thanks.

Comment 3 mcisho 2010-12-17 13:28:57 UTC
I am wrong, the problem is not completely fixed. Yesterday evening I was wondering if it had been fixed in F14 so I plugged in the webcam and re-booted the machine; result, both the internal audio and the webcam were displayed in Sound Preferences and I could play and listen to music. This morning the webcam was still plugged in when I powered on the machine; result, only the webcam was displayed in Sound Preferences and no sound is audiable.

Comment 4 Fedora End Of Life 2012-08-16 18:28:21 UTC
This message is a notice that Fedora 14 is now at end of life. Fedora 
has stopped maintaining and issuing updates for Fedora 14. It is 
Fedora's policy to close all bug reports from releases that are no 
longer maintained.  At this time, all open bugs with a Fedora 'version'
of '14' have been closed as WONTFIX.

(Please note: Our normal process is to give advanced warning of this 
occurring, but we forgot to do that. A thousand apologies.)

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