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Full Discussion: Sound Device
Top Forums UNIX for Advanced & Expert Users Sound Device Post 302487763 by Corona688 on Thursday 13th of January 2011 01:00:20 PM
Old 01-13-2011
You can install lsof which will list everything that has open files and sockets on your system. look for things that have /dev/sound/ or /dev/dsp or things like that.

One odd thing I've discovered with firefox and flash is that programs it launches also inherit an open sound device! if firefox is hogging the sound device, and firefox launches xpdf, and you close firefox completely, xpdf will still hog it! It is very bizarre.

If you can turn off OSS emulation completely and use alsa exclusively, hogging shouldn't be a problem. I don't know exactly how to do this in fedora though.
 

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FIREFOX(1)							Linux User's Manual							FIREFOX(1)

NAME
firefox - a Web browser for X11 derived from the Mozilla browser SYNOPSIS
firefox [OPTIONS] [URL] firefox-bin [OPTIONS] [URL] DESCRIPTION
Mozilla Firefox is an open-source web browser, designed for standards compliance, performance and portability. USAGE
firefox is a simple shell script that will set up the environment for the actual executable, firefox-bin. OPTIONS
A summary of the options supported by firefox is included below. GTK options --gdk-debug=FLAGS Gdk debugging flags to set --gdk-no-debug=FLAGS Gdk debugging flags to unset --gtk-debug=FLAGS Gtk+ debugging flags to set --gtk-no-debug=FLAGS Gtk+ debugging flags to unset --gtk-module=MODULE Load an additional Gtk module X11 options --display=DISPLAY X display to use --sync Make X calls synchronous --no-xshm Don't use X shared memory extension --xim-preedit=STYLE --xim-status=STYLE --g-fatal-warnings Make all warnings fatal Firefox options -h, -help Show summary of options. -v, -version Print /usr/bin/firefox-bin version. -CreateProfile profile Create profile. -P profile Start with profile. -ProfileManager Start with profile manager. -remote command Execute command in an already running Firefox process. For more info, see: http://www.mozilla.org/unix/remote.html -jsconsole Start with Javascript Console -chrome url Load the specified chrome. -no-remote Don't connect to any other running instances of firefox. Use this if you want to run firefox in an entirely new process. By default, firefox will delegate a command to an already running instance. -safe-mode Start firefox in safe-mode. This disables all third-party extensions, and may be necessary if you are having problems with an exten- sion you installed. -new-tab url Open url in a new tab. -new-window url Open url in a new window. -preferences Open the preferences dialog. -private Start firefox in private browsing mode. -private-toggle Toggle private browsing mode. -setDefaultBrowser Set firefox as the default web browser. -search term Search for term with your default search engine. -migration Start with migration wizard. -new-instance Open new instance, not a new window in running instance. FILES
/usr/bin/firefox - shell script wrapping firefox /usr/lib/mozilla/firefox-bin - firefox executable VERSION
1.0 BUGS
To report a bug, please visit http://bugzilla.mozilla.org/ SEE ALSO
mozilla(1) AUTHORS
The Mozilla Organization http://www.mozilla.org/about.html firefox August 07, 2001 FIREFOX(1)
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