[vdr] [PATCH] RGB/PAL over VGA at variable frame rate

Petri Hintukainen phi at sdf-eu.org
Thu Aug 14 12:15:58 CEST 2008


to, 2008-08-14 kello 11:25 +0200, Thomas Hilber kirjoitti:
> On Wed, Aug 13, 2008 at 09:09:45PM +0100, Gavin Hamill wrote:
> > Xorg process is taking 40% CPU, with vdr taking 25%. The 'system' CPU
> > usage is 32%, with 16% for user processes. 
[...]
> Does the Xserver poll for some resources not available or something?

Maybe the driver is waiting for free overlay buffer ? Some drivers wait
for free hardware overlay buffer in simple busy loop.

Usually this can be seen only when video player draws Xv frames faster
than the actual output rate (ex. displaying 50p video with 50p display
mode).


- Petri






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