Bug 836759

Summary: Microphone built into webcam not working properly after first use (0c45:62e0 Microdia MSI Starcam Racer)
Product: [Fedora] Fedora Reporter: Gideon Mayhak <gnafu_the_great>
Component: alsa-libAssignee: Jaroslav Kysela <jkysela>
Status: CLOSED CURRENTRELEASE QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: unspecified Docs Contact:
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Version: 17CC: jkysela
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Last Closed: 2013-07-05 18:04:25 UTC Type: Bug
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alsa-info output none

Description Gideon Mayhak 2012-07-01 01:18:20 UTC
Created attachment 595493 [details]
alsa-info output

Description of problem:
When using the mic built into my webcam, I get loud static on all but the first use (the first time you use it, it works perfectly; it seems to be some issue with reinitializing the device on subsequent attempts).

Version-Release number of selected component (if applicable):
alsa-lib-1.0.25-3.fc17.x86_64
kernel-3.4.3-1.fc17.x86_64

How reproducible:
Every time after the first use of the device after a reboot.

Steps to Reproduce:
1. Reboot
2. Use mic once (it sounds good)
3. Use mic again after the webcam's light has gone off (it sounds terrible)
  
Additional info:
Output from alsa-info is attached.  Please let me know if any particular logs would be helpful after a reboot for when it's working and not working.

Comment 1 Gideon Mayhak 2012-07-01 01:23:16 UTC
I should also note that this has been the behavior at least as far back as F15.  In my time owning the device, the mic has not worked properly.  I would also like to note that I have had no such issues using this same webcam on a Windows computer several times.  I own two of these, and both exhibit this behavior in Linux but not in Windows.

Comment 2 Fedora End Of Life 2013-07-03 22:59:16 UTC
This message is a reminder that Fedora 17 is nearing its end of life.
Approximately 4 (four) weeks from now Fedora will stop maintaining
and issuing updates for Fedora 17. It is Fedora's policy to close all
bug reports from releases that are no longer maintained. At that time
this bug will be closed as WONTFIX if it remains open with a Fedora 
'version' of '17'.

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Comment 3 Gideon Mayhak 2013-07-05 18:04:25 UTC
I actually just tried the cam's mic the other day, and it appears this was fixed at some point during F18's life.  Current F18 doesn't seem to exhibit this issue.  I'm guessing a kernel update some time back fixed it and I just didn't notice 'til now.