[ MDVA-2008:168 ] sound-scripts

[dude67]

The sound initialization scripts provided with Mandriva Linux 2009
activate the Analog Loopback channel when it is present. This channel
is present on most audio chipsets supported by the snd-hda-intel
driver, which are commonly used on recent systems. When active,
this channel plays back the sound received by the line-in and mic-in
channels. If nothing is actually connected to these channels, this
can result in an unpleasant loud noise over the speakers or headphones
connected to the line-out or speaker-out connector.

This update adjusts the sound initialization scripts to mute this
channel by default. Unfortunately, this change will not be applied
automatically on already-installed systems, as existing settings
are automatically stored at shutdown and re-applied at startup on
Mandriva Linux. If you are suffering from this issue, then you can
run the command 'reset_sound' as root after installing this update,
and it should resolve the issue. Alternatively, you can simply disable
/ mute the Analog Loopback channel yourself, using a mixer application.