Kaffeine playback jerky

[David McGlone]

On Friday 05 September 2008 12:45:20 am Billie Walsh wrote:
> I'm firmly believing this is not a video issue. When I was burning some
> discs tonight I had the same problem. The mouse pointer was jerky and it
> took forever to do anything else while the disk was burning [ reading
> e-mails and deleting ].
>
> It has to be some sort of a system resource issue.

Billie,

I had the same problem on my laptop that you are having and it was because I 
had the ATI driver enabled. Once I disabled the driver everything worked 
fine. My laptop still doesn't have the driver enabled because of this. I'm 
not saying that it could be something else, but I sure know it has something 
to do with X and the driver. I haven't switched back to the ATI driver in my 
laptop because it wasn't all that important to me to have 3D on the laptop. 
As long as my guitar dvd's worked without jerking I was happy. 

The reason I think you are having the jerkiness while burning a disk or 
playing a movie is because X is having a problem redrawing the screen when 
you are using an app that requires more rendering such as k3b's progress bar 
or even more extensive rendering from a movie.

Try this. on an empty desktop with no apps running, move your mouse around 
slowly. Does it jerk? now move it around fast. Does it jerk? now open an 
application and while it is opening move your mouse around, I bet it jerks 
even worse while the window is opening as opposed to an empty desktop.

David M.