low latency is intalled? why video is running slow

[beejunk at gmail.com]

On May 16, 2009 6:39am, quim <serra.quim at gmail.com> wrote:




> Hello folks!

> I recently changed my system from Ubuntu Studio 8.04 to Ubuntu Studio  
> 9.04, Jaunty Jackalope, It's running fine, but I noticed that the video  
> is running far slower than under the Hardy Heron (8.04) version.

> Is anybody here using Ubuntu Studio 9.04 for video editing?



> In the Ubuntu studio web page I read that 8.04 is still the recommended  
> release for production critical machines, but I thought it was for  
> security or reliability reasons, not for a lack of velocity...

> I wouldn't like to get back to the oldest release if it's possible, but I  
> don't know how to run video faster!



> Recently, I also read this in the Ubuntu Studio WebPage for the 9.04  
> install: "We are happy to announce the real time kernel will be installed  
> by default in Ubuntu Studio in this release, if the audio task is  
> selected...) Only If the audio task is selected? When I Installed the US  
> 9.04 I didn't installed the Audio software package, only the Video ones.  
> Does it means that low latency isn't installed in my computer? Could be  
> this fact the problem?

> Any suggestions?

> Thanks to all,



> Quim



You can check if the real time kernel is installed in a few different ways.  
The quickest method would probably be to type 'uname -r' into a terminal  
and see what it tells you. If the kernel name ends with rt, then you've got  
it. You can also use Synaptic Packager Manager and search for the linux-rt  
package to see if that's installed.

Either way, I don't think the lack of a real time kernel would be the  
source of your problem. Other people on this list have mentioned that video  
editing under Jaunty seems to be slower, but I don't recall if it was  
determined why. I've never done video editing, so I'm of no use to you  
there. Sorry!

-Brian
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