[mythtv-users] HD Help - Slow Guide

Steve Daniels steve.p.daniels at googlemail.com
Thu Aug 21 12:22:29 UTC 2008


2008/8/4 Bill Stewart <wstewart at hgrace.com>:
> I have two frontends, on one (1) when diplaying HD, the guide is very, very
> slow to respond to key presses.  On the other (2), its actually a slower
> processor but very responsive in the guide.
>
> On (1), there is a dual processor (T2500 2GHz dual), the xorg process is at
> 98% of CPU and mythfrontend is at 30%.
>
> On (2) there is one processor, P4 at 2.4Ghz, the xorg process is at 10% and
> mythfrontend at 53.5%.
>
> Both have identical video profiles in the mythtv frontend settings.
>
> The main difference is that (1) is running Ubuntu Hardy (8.04) with a Nvidia
> 8400GS and more recent Nvidia driver and a custom 2.6.24 kernel.

I'll take a stab in the dark (not familiar with this graphics card)
and guess that xvmc likely isn't working on this system, not sure if
it's 100% possible for search around for your graphics card and xvmc
and the magic should happen.

>
> (2) is Ubuntu fiesty (7.04) with an Nvidia 6200, older Nvidia driver and
> custom 2.6.20 kernel.
>
> In both cases the kernel is optimized (ie. 1000Hz, etc).
>
> Any suggestions as to why the faster machine performs worse with HD
> material?  I've just started to dig into the problem, but I am hoping
> someone else may have encountered a similar problem as there are a lot of
> variables to check.

Steve Daniels


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