[mythtv-users] Re: OT: nVidia and XvMC?

[Simpson, Richard]

> -----Original Message-----
> From: mythtv-users-bounces at mythtv.org
> [mailto:mythtv-users-bounces at mythtv.org]On Behalf Of Mark Linford
> Sent: Saturday, October 15, 2005 9:39 AM
> To: Discussion about mythtv
> Subject: Re: [mythtv-users] Re: OT: nVidia and XvMC?
> 
> 
> On 10/15/05, Brian Merrill <bmerrill at sfcn.org> wrote:
> > Hi, you really haven't said much about your setup outside 
> of your Myth
> > hardware so this is probably way of the mark, but I figure 
> it couldn't
> > hurt to mention.  Anyway, is that Sempron 64 bit?  And are 
> you running
> > FC 3 64 bit as well as the NVidia 64 bit binary driver?  If so, from
> > what I can tell on the nvnews.net linux forums, XVMC pretty 
> much doesn't
> > work at all with the 64 bit driver.  That said, if the 64 
> bit scenario
> > doesn't come into play for you, then please disregard.  
> However, it does
> > sound eerily similar to what I was chasing for a short 
> while trying to
> > get XVMC to work on my Athlon 64, so worth a shot in mentioning.
> >
> >
> The Sempron is 64bit capable, but I'm using the 32bit version of FC4,
> for the same reasons you mention above. Here's some more detail about
> my setup:
> 
> * GIGABYTE GA-K8VM800M Socket 754 VIA K8M800 Micro ATX AMD Motherboard
> * GIGABYTE GV-N62128DE Geforce 6200 128MB DDR AGP 4X/8X Video Card
> * AMD Sempron 64 2500+ Palermo 800MHz FSB Socket 754 Processor Model
> SDA2500BXBOX
> * Kingston ValueRAM 512MB 184-Pin DDR SDRAM DDR 400, one stick
> * pcHDTV HD3000
> * Hauppaguge PVR-150
> 
> Let me know if you need any more info. Thanks!
> 
Can you ssh in from another workstation to see if your CPU is actually pegging out and what processes might be hogging it? I found that enabling commercial flagging while trying to play back a HD recording caused the mythcommflag process to eat up about 45% of the CPU by itself, and pegging everything at 95+%. I haven't had time to troubleshoot this, but presumably mythcommflag has to decompress the stream to do its thing. At one point I even saw TWO copies of mythcommflag running at about 45% each, resulting in only about 1 in 50 frames getting to the TV.

Richard.