I'm currently using Ubuntu Gutsy 7.10.

When I had Feisty I installed kdenlive (version 0.4svn...). I think I installed with the .deb-packages from Trevinos Website (without adding the repository to my /etc/apt/sources.list but that shouldn't change anything). I sometimes had problems with the sound, but when I closed all "sound-programms" (Banshee, Totem) and restarted kdenlive it generally worked.

After the update to Gutsy I wanted to have kdenlive version 0.5 (now included in the official repositories). So I deleted the version I had. That made my package-manager freeze because the package mlt is called libmlt in the Ubuntu repositories (I think that was the reason). I finally got mlt and mlt++ deleted. So I installed kdenlive and its depedencies from the Ubuntu sources. Everthing works fine, only that problem that I just don't get any sound from kdenlive (KNotify works).

If I open Kdenlive in a terminal, I get this:

X Error: BadDevice, invalid or uninitialized input device 171
  Major opcode:  149
  Minor opcode:  3
  Resource id:  0x0
Failed to open device
X Error: BadDevice, invalid or uninitialized input device 171
  Major opcode:  149
  Minor opcode:  3
  Resource id:  0x0
Failed to open device
X Error: BadDevice, invalid or uninitialized input device 171
  Major opcode:  149
  Minor opcode:  3
  Resource id:  0x0
Failed to open device
X Error: BadDevice, invalid or uninitialized input device 171
  Major opcode:  149
  Minor opcode:  3
  Resource id:  0x0
Failed to open device
kbuildsycoca running...
kdenlive:  + + YOUR MLT INSTALL WAS FOUND IN: /usr
kdenlive: Mlt inited
kdenlive: Creating new document
kdenlive: deleting contents...
kdenlive: Creating new document DONE 
kdenlive: ****************  INIT DOCUMENT VIEW ***************
kdenlive:  + + CREATING CONSUMER WITH PROFILE: dv_pal
kdenlive:  + + CREATING CONSUMER WITH PROFILE: dv_pal
kio (KMimeType): WARNING: KServiceType::offers : servicetype ThumbCreator not found
kio (KMimeType): WARNING: KServiceType::offers : servicetype ThumbCreator not found
kdenlive: WARNING: Got a request for a changed clip that is not in the document : capture001.dv
kdenlive: *** DOCUMENT adding clip: capture001.dv
SDL failed to open audio: No available audio device

I thinks it's that last message where the troubles begin. In fact, in the Kdenlive configuration I have only one choice for the audio-device "Default". Kdenlive doesn't recognize my audio-devices.

In your Wiki I read:

Is that my problem? But I didn't find anything about this Trevino-problem. Has anybody else experienced something similar to me?

Could this mlt to libmlt renaming be a problem?

Please help me because like Kdenlive is now, I just can't work. Thanks.

I really wonder if this is caused by my system itself (if Kdenlive 0.5 can't work with my system) or by this weird updating from the Trevino-version.

But, if you can't tell me what to do, you could tell me what this Trevino-problem mentioned in the wiki is. Please.

Ok, I installed the libsdl1.2debian-all package and now everthing works fine. I don't really konw why.

Thanks to this bugreport: http://www.kdenlive.org/mantis/view.php?id=31