Bug#582938: mute buttons disabled by default in ardour

[ScottALavender at gmail.com]

Package: ardour
Version: 1:2.8.6-1+b1
Severity: important
Tags: sid, squeeze

When mute buttons for any particular track are picked the track does not  
mute, rather than the expected action of muting the track.

It would appear that the track mute buttons are unintentionally disabled by  
default as this is an acknowledged bug from upstream, which is supposedly  
fixed in "A3" : http://tracker.ardour.org/view.php?id=2832

This has been also been reported in Ubuntu and a patch is being worked on  
which will be pushed back "upstream" to Debian (probably via quadrispro of  
the Debian Multimedia team):  
https://bugs.launchpad.net/ubuntustudio/+bug/581786

The immediate workaround this bug in a particular project is to right click  
on the mute button and enable at least one of the choices for mute. But  
this will not prevent the mute buttons being disabled on new projects.

The immediate workaround this bug for future projects is to edit  
the 'ardour.rc' file in the .ardour2 directory of the user's home folder.  
Change the following entries from:

Option name="mute-affects-pre-fader" value="0"/>
Option name="mute-affects-post-fader" value="0"/>
Option name="mute-affects-control-outs" value="0"/>
Option name="mute-affects-main-outs" value="0"/>

to this:

Option name="mute-affects-pre-fader" value="1"/>
Option name="mute-affects-post-fader" value="1"/>
Option name="mute-affects-control-outs" value="1"/>
Option name="mute-affects-main-outs" value="1"/>

Additionally, it should be noted that I saw bug reports that indicated this  
bug was present as far back as Ardour 2.8.2

Thank you,
ScottL
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