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Old 05-28-2010, 01:02 AM
Scott Lavender
 
Default Ubuntu Studio Bug Updates

Hello all,

I'd like to inform you about some significant bugs in Ubuntu Studio and their import.

** Ardour Mute Bug **
The first one I wanted to discuss is the "mute will not work in Ardor" bug - https://bugs.launchpad.net/bugs/581786






This manifests as disabled mute buttons and I suspect that this has existed throughout the Ardour 2.8.x series.* This bug results from a build configuration file that mixes settings of '1' and 'yes' for affirmative.* It appears that when Ardour is built the 'yes' option is not parsed as an affirmative and the local config file in the user's home directory therefore contains settings of '0' for the various mute options.






Those affected will notice this bug when a recording a track and then attempting to mute the track on playback.* The track will not be muted although the mute button will lit up.

To fix this in existing projects within Ardour:* right click on the mute button, four options will be presented, left click on the desired mute options.* However, I believe this will fix this track ONLY and all new tracks added will still have a disabled mute button.






To fix this for future project and new tracks in existing projects:* open the ~/.ardour2/ardour.rc file (notice: the directory is hidden) with your favorite editor and make sure the to mute options look like this below:


<Option name="mute-affects-pre-fader" value="1"/>




<Option name="mute-affects-post-fader" value="1"/>
<Option name="mute-affects-controls-outs" value="1"/>
<Option name="mute-affects-main-outs" value="1"/>






Ardour-2.8.7 has been built for Maverick with the 120_mute.patch and users who do a clean, fresh full install with Maverick should not notice this bug.






** gnome-network-admin Bug **
The other bug I wanted to mention is the "can't configure network" bug:* https://bugs.launchpad.net/ubuntu/+source/gnome-system-tools/+bug/570828






This manifests itself on a new install of Ubuntu Studio by a grayed out configuration options in the gnome-network-admin application for configuring the network.* This effectively prevents users from configuring a working network connection, most noticeably after a fresh install of Ubuntu Studio.


When network-manager was chosen to be the default application to configure networks in vanilla Ubuntu, a patch was applied to gnome-network-admin to disable the interface resulting in one place to configure the network.* This works well for vanilla Ubuntu desktop users as they had network-manager installed by default, however network-manager is not installed by default in Ubuntu Studio, we have the crippled gnome-network-admin installed by default.






The choice to use gnome-network-admin should be explained.* network-manager was discovered to cause additional latency when recording audio, therefore gnome-network-admin was chosen because it doesn't cause the same latency issues.* However, it was unknown that the 10_disable_interface.patch was applied to neuter it's configuration capabilities at that time.






What we are attempting to effect is have the patch removed.* Considering that gnome-network-admin isn't installed by default in a vanilla Ubuntu desktop install, we are not expect that this will be considered a regression.






So until the patch is removed there is still a work around.* I believe that both network-manager and network-manager-applet are installed on the Ubuntu Studio DVD.* You can find them on the DVD at:
*
network-manager: * * * * * * * /pool/main/n/network-manager/network-manager_0.8-0ubuntu3_i386.deb


network-manager-applet: * * /pool/main/n/network-manager-applet/network-manager-gnome_0.8-0ubuntu3_i386.deb

You can choose to moderate your sources in Synaptic (System -> Administration -> Synaptic Package Manger) and add the DVD as a source (Setting -> Repositories -> Cdrom with Ubuntu 10.04 'Lucid Lynx').* After reloading package information (RELOADING IS AN IMPORTANT STEP) you should be able to find and install either network-manager or network-manager-applet, which would allow you to properly configure your network.


Another options, if you can't use the DVD as a repository, is to copy either .deb file and install it by copying the .deb file to your desktop and a) double click on it or b) use the terminal and 'dpkg -i filename.deb'.* NB: don't type filename in the dpkg command, use the *actual* file name of the .deb file.


As mentioned before, our goal is to correct this issue and hopefully in time for Maverick and the rebuilding of 10.04.1.


I hope you find this email helpful.* Please let us know if you have any questions or comments.


Regards,
ScottL


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