[mythtv-users] Nehemiah Performance

[Tako Schotanus]

> I *am* using RH9 and I would very much like to get the special drivers
> you mention running.  Can you be a bit more precise about what to get
> and from where?  (Or even what to search for on viaarena.com to find
> what you are referring to...)
> 
> I would also like to know what you have to do to use them.  I.e.,
> recompile X?

Well, I (Tako, not Anders who also responded to you in this thread) have
the drivers that came with the XFree86 from CVS, they had to be used
with that version of X because for me they didn't work on the X that
came with RH9.

> 
> > You got 16m/8m at 720x480 running with Myth Live TV?
> 
> As far as I can tell simply selecting 720x480 in the LiveTV 
> setup (under
> recording options) does it.  It seems to correctly cause 
> mythtv to send
> call the proper ioctls to set the PVR-250 to use this resolution.
> 
> Did you try that?

Ah sorry, I wasn't suggesting that I wasn't able to use higher
resolutions I just wanted to indicate the max resolution I can select to
get (almost) stutter free (live) TV. (Using the OSD will seriously
degrade the performance).

That's why I was interested in Ander's remark that he is able to watch
TV at full NTSC resolution and even use the highest quality setting as
well.

> 
> As I said though, there is constant stuttering when watching 
> LiveTV (or
> recorded programs) at this resolution (on my m10k).  If the above
> drivers will solve this it would be just great!
> 
> Does anyone have any thoughts on why the ATI Radeon requires so little
> CPU to drive it when playing TV?
> 
> Dick
> 
> > That would be seriously cool because I'm currently using 
> something like
> > 5m/4m at 460x576 to get stutter free video.
> > 
> > But I'm not using those binary drivers you mention but the 
> drivers that
> > came with the CVS version of XFree86 some months ago.
> > 
> > Did you have to do anything special to get those drivers to work?
> > (Recompile X like I had to do for example) The reason I ask is that
> > previous binary drivers I had encountered all seemed to use
> > functionality/API from X that was not included in the 
> standard RedHat 9
> > version.
> > 
> > Cheers,
> >  -Tako
> > 
> > > -----Original Message-----
> > > From: mythtv-users-bounces at mythtv.org 
> > > [mailto:mythtv-users-bounces at mythtv.org] On Behalf Of and
> > > Sent: vrijdag 29 augustus 2003 9:12
> > > To: Discussion about mythtv
> > > Subject: Re: [mythtv-users] Nehemiah Performance
> > > 
> > > 
> > > Are you using redhat 9?
> > > If you are, there are binary video and accl mpeg drivers 
> available at 
> > > viaarena.com that really helps. I've been playing around with 
> > > it today 
> > > and even with the 16m/8m stream at 720x480 from my pvr250 I 
> > > didn't see 
> > > any problems.
> > > I used to be running debian where there are no binary drivers 
> > > avaliable 
> > > for the cle266 and could therefore not take advantage of 
> the hardware 
> > > accl....at least that is what I think is making the big 
> difference on 
> > > my m10k.
> > > 
> > > anders
> > > 
> > > On Thursday, August 28, 2003, at 09:21 PM, rwk at americom.com wrote:
> > > 
> > > > Hi,
> > > >
> > > > Just to see if I could tell the difference, I set my record 
> > > resolution
> > > > from 480x480 to 720x480.  However, when I started watching I was
> > > > surprised to find that my 1Gh Nehemiah EPIA processor 
> > > couldn't handle
> > > > it.  It sputtered every few seconds.
> > > >
> > > > I ran a top from another machine and indeed observed that 
> > > mythfrontend
> > > > was using 99% of the cpu.
> > > >
> > > > My EPIA machine is connected to a TV through the onboard 
> > > S-Video out.
> > > >
> > > > As a comparison I tried the same thing on my Athlon 2200+ 
> > > running a ATI
> > > > Technologies Inc Radeon VE QY video card.  I was again 
> > > surprised to see
> > > > that mythfrontend was using less than 0.1% of the CPU and X 
> > > was using
> > > > about 10%.  Needless to say it plays without missing a beat.
> > > >
> > > > What is it about the EPIA (hardware or drivers) which 
> makes it soooo
> > > > much slower than the Athlon system?  The difference is CPU 
> > > power is not
> > > > enough to explain it.  Is it the video drivers?
> > > >
> > > > And why is all the processing in mythfrontend on the EPIA 
> > > box, and in X
> > > > on the Athlon?
> > > >
> > > > Thanks for any and all opinions!
> > > >
> > > > Dick
> > > > _______________________________________________
> > > > mythtv-users mailing list
> > > > mythtv-users at mythtv.org
> > > > http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
> > > 
> > > 
> > 
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