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Bug 445342 - starting uDev makes audible pop noise from my speakers
starting uDev makes audible pop noise from my speakers
Product: Fedora
Classification: Fedora
Component: udev (Show other bugs)
All Linux
low Severity low
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Assigned To: Harald Hoyer
Fedora Extras Quality Assurance
Depends On:
  Show dependency treegraph
Reported: 2008-05-06 06:37 EDT by Rodd Clarkson
Modified: 2008-05-06 06:45 EDT (History)
0 users

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Fixed In Version:
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Last Closed: 2008-05-06 06:45:02 EDT
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RHEL 7.3 requirements from Atomic Host:
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Description Rodd Clarkson 2008-05-06 06:37:19 EDT
Description of problem:

Each time I start f9-preview, just before the [OK] appears for Starting UDev, I
hear a reasonably loud, audible POP from my speakers.

This didn't happen in f8 and while it doesn't seem to do any damage, I can't
imagine why my speakers need to POP on start up.

Is this an issue? And what more do you need to know?

Version-Release number of selected component (if applicable):


How reproducible:

Very reproducible.  Just (re)boot fedora.
Comment 1 Harald Hoyer 2008-05-06 06:45:02 EDT
My guess:

sound modules get loaded

/etc/udev/rules.d/90-alsa.rules runs /sbin/salsa, which restores the last mixer

mixer settings are stored in /etc/alsa/asound.state

$ fgrep salsa  /etc/init.d/*
/etc/init.d/halt:if [ $? = 0 -a -x /sbin/salsa ]; then
/etc/init.d/halt:   action $"Saving mixer settings" /sbin/salsa -s

and this is stored if you shut down your system.

not a udev bug...

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