[mythtv-users] XP2100 outperforms my P4-3.2Ghz

[Marius Schrecker]

> On Wednesday 18 January 2006 17:25, mythtv-users-request at mythtv.org wrote:
>> I had myth setup on a XP2100 processor system and everything worked
>> quite
>> well.  Now that I have upgraded to a new computer with a P4
>> 3.2Ghzprocessor, during live TV, mythfrontend actually uses more of my
>> CPU.
>> Sometimes up to 99%.  When this happens I get a prebuffering pause and
>> the
>> video kind of glitches.  Anybody ever experience something like this?  I
>> have tried changing most of the settings in the setup and didn't see any
>> improvement.  I was thinking about trying another kernel or video card,
>> but
>> the video card doesn't seem to be the problem.
>> Notable differences in systems:
>>
>> AMD XP2100 proc
>> Nvidia FX5200
>> Fedora Core 3
>> 2.6.10 kernel
>> Hauppauge PVR250
>>
>> P4 3.2Ghz proc
>> ATI X300
>> Fedora Core 4
>> 2.6.14-SMP kernel
>> Hauppauge PVR250
>>
>> Thanks for any help you can offer!
>> A
> If your Nvidia had Nvidia's drivers it would have had hard-decode support,
> if
> your ATI card uses the xorg drivers it doesn't have that. I can run
> 800x600
> on a 300MHz machine with the right Nvidia drivers, it fails to play
> 480x480
> with the xorg drivers.
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Why are you using a SMP kernel? I've never used a Dual Core processor, but
I'm guessing that even then you'd probably be better off with a standard
(optimized) kernel.

The viedo drivers probably are your first bet though. A word of warning:
the proprietary fxlrx drivers don't work with X.org 6.9, so if you want to
try them, don't upgrade x until ATI bring out the next version.

Marius