[mythtv-users] Mythtv playback problem with NVIDIA videoa cceleration - HELP! (still unsolved)

[Jarod Wilson]

On Friday 01 April 2005 07:35, Brian Stults wrote:
> Jarod Wilson wrote:
> > On Tuesday 29 March 2005 09:52, Jarod Wilson wrote:
> >>>Can't wait to bench my new workstation -- Athlon 64 3500, PCI-Exp.
> >>>GeForce 6600GT. :-)
> >>
> >>For the record, just did bench it. Kinda snappy:
> >>
> >>31203 frames in 5.0 seconds = 6240.600 FPS
> >>31111 frames in 5.0 seconds = 6222.200 FPS
> >>30740 frames in 5.0 seconds = 6148.000 FPS
> >>31442 frames in 5.0 seconds = 6288.400 FPS
> >>
> >>That's w/the 7167 drivers on RHEL4 x86_64.
> >
> > And now with 7174, same box:
> >
> > 35696 frames in 5.0 seconds = 7139.200 FPS
> > 35680 frames in 5.0 seconds = 7136.000 FPS
> >
> > Hopefully, 7174 has rectified all the issues that made 7167 somewhat
> > still-born for so many folks...
>
> I've never used glxgears before, so I decided to give it a whirl on my
> frontend.  I get *much* smaller numbers:
>
> 3057 frames in 5.0 seconds = 611.400 FPS
> 3172 frames in 5.0 seconds = 634.400 FPS
> 3162 frames in 5.0 seconds = 632.400 FPS
> 3173 frames in 5.0 seconds = 634.600 FPS
>
> Of course, my system is very different from yours, so I'm curious which
> particular difference between the systems makes the most difference in
> the rendering speed.
>
> I suspect the two most relevant factors are CPU and GPU.  First, I only
> have an Athlon XP 2400. Second, my mobo is a 7NIF2, so I'm using the
> integrated MX 440.  Do both of these have a big influence, or would you
> say one is more important than the other?

I believe the video card should have a bigger impact. I have yet to test my 
7NIF2 box, I'll play with that over the weekend though. I'm still not certain 
exactly what to expect where. My 2.8GHz HT-P4 workstation w/a GF FX 5200 only 
clocks around 1100fps. But then another system with a GF4Ti cranks out over 
4000fps. The P4 has no problem keeping up with HDTV though.

> I'm curious mostly because I still see some tearing when playing DVDs
> and I'm wondering if I should upgrade the video card or the CPU.  I'm
> very happy with the current quality of my TV output, though that might
> change if I switch to HDTV.

I think if you're on the edge of viability for HDTV playback, an AGP card 
definitely helps. It does in the case of my Athlon XP 1800, which is sitting 
on my 7NIF2 mobo right now. Same graphics chipset in my case (GF4MX), just 
not sharing system memory anymore. I need to try out my GeForce 6200 in that 
box again, now that 7174 is out (the fugly beast that is 7167 didn't work for 
squat on this setup).

-- 
Jarod Wilson
jarod at wilsonet.com

Got a question? Read this first...
     http://catb.org/~esr/faqs/smart-questions.html
MythTV, Fedora Core & ATrpms documentation:
     http://wilsonet.com/mythtv/
MythTV Searchable Mailing List Archive
     http://www.gossamer-threads.com/lists/mythtv/
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 189 bytes
Desc: not available
Url : http://mythtv.org/pipermail/mythtv-users/attachments/20050401/ceb3c639/attachment.pgp