[MPlayer-users] Process X using too much CPU
jonner at teegra.net
Tue Apr 29 08:22:04 CEST 2003
> What is the X process doing? The answer could help me to identify the
Well, I know I'm just repeating myself, but the X process could be doing
the colospace conversion and scaling. I've observed this on a machine
with cheap onboard video. The XFree driver for the card supports Xv, but
the X process uses quite a bit of CPU time while playing a DVD.
The result was that the overall CPU usage playing a DVD was about the
same on my Duron 800 machine with an Nvidia Vanta as it was on an Athlon
(about 1400) machine with the onboard video. However, on my Duron 800
machine, almost all of the CPU time was spent in the DVD player app,
while on the other machine, a significant percentage was spent in the X
server process. I can't remember what type of video chip was on the
other machine, but I think it was either SiS or Intel i810.
But, you said there was a change from the way things used to work, so
the hardware probably is capable of doing the grunt work. It could be
that you just have some incorrect value in the XF86Config file which is
not allowing hardware acceleration to be used. The developer of the SiS
driver should be able to tell you whether hardware acceleration is used
and how to ensure it's enabled.
Check if there is more than one driver module for your chip. For Nvidia
chips, for instance, there is the "nv" driver included with XFree, and
the proprietary "nvidia" driver from Nvidia. I only use the proprietary
one because the Free one doesn't provide Xv or OpenGL for the Vanta chip.
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