[mythtv-users] Can't get glx to load
jerrymr at gmail.com
Fri Jan 27 20:16:10 UTC 2006
On 1/27/06, Michael T. Dean <mtdean at thirdcontact.com> wrote:
> On 01/27/2006 02:57 PM, Jerry Rubinow wrote:
> > On 1/27/06, Michael T. Dean <mtdean at thirdcontact.com> wrote:
> >> On 01/27/2006 01:25 AM, Jerry Rubinow wrote:
> >>> Today I switched from an nvidia card to onboard sis, and in the
> >>> Xorg.0.log it's still trying to load nvidia's glx extension and
> >>> failing to initialize because I'm now loading the sis driver.
> > The main reason I want to reduce CPU usage at this point is that I'm
> > playing back 720p HD using libmpeg2 and the CPU is bouncing between
> > around 80% and 93%+, with the result that I'm getting stutter. I'm
> > looking for anything that I can do to reduce the CPU load. I'm
> > running a 2.8GHz P4, and I know people have talked about doing HD on
> > 2.4 GHz machines, so I'm not sure why it's so high. I'm not running
> > any deinterlace. Can't do XvMC on Sis.
> So, why are you getting rid of the NVIDIA card (which can do XvMC)? I'd
> say the XvMC is your best bet. Any other method of reducing CPU usage
> is likely to provide negligible gains during playback--that is any
> method short of transcoding HDTV to a lower resolution.
Because a Pundit motherboard only has PCI slots, and PCI doesn't seem
to have the bandwidth for HD. I'm not sure how much lower XvMC's
bandwidth requirements are (if at all) than non-XvMC video, but I was
never able to get XvMC to play acceptably over the PCI.
The on-board Sis, on the other hand, seems to have the bandwidth, and
I _should_ have the CPU, but I'm not sure why it's getting maxed out.
I compiled Myth with O3 and the processor-specific option.
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