[mythtv-users] XvMC on NVidia with Myth .20 (Anyone getting good HD off a P4 3.2G or less without XVMC?)
Dave
dave at optionsdsl.ca
Fri Jan 5 03:59:58 UTC 2007
Im using a Pentium D dual core 805 (it was cheap) without XvMC and it
works great, One core runs at 70% while the other runs at 16% decoding
_and_ displaying 1080i, although its a frontend machine only. XvMC isnt
worth the headache if you can do it without if ya ask me :) My video
card is a nvidia 5750 PCI-E. I like the overlay that still exists in
the 5xxx series cards :)
Nate Crosno wrote:
> I'm having the same issue -- xine works great with xvmc, but Myth does
> not. I've tried everything I can think of. This is my last big
> hurdle. It stinks that Myth is so finicky with xvmc while xine seems
> to work easily for most people. I'm very interested to hear if you
> have any luck.
>
> On a slightly different topic, is anyone getting good quality HD
> playback *without* XVMC on a P4 3.2 Ghz or less? If so, do you have
> HT enabled or disabled? (I've tried both). I thought this should have
> worked. I think my limiting factor is the PCI video card, but that's
> all my MB has. I think the on-board video is AGP, but it's only VGA
> and I need DVI. If I cannot get XVMC to work in Myth and others
> report that this processor is capable of HD, my other option is a new
> MB and AGP video card and re-use the rest of my hardware. A quick
> search on newegg shows I can do that for about $90.
>
> Thanks,
> Nate
> ------------------------------------------------------------------------
> *From:* mythtv-users-bounces at mythtv.org
> [mailto:mythtv-users-bounces at mythtv.org] *On Behalf Of *Billy Macdonald
> *Sent:* Wednesday, January 03, 2007 11:31 PM
> *To:* mythtv-users at mythtv.org
> *Subject:* [mythtv-users] XvMC on NVidia with Myth .20
>
> Hello,
>
> For Christmas I bought myself my first HD tuner. It's a USB
> tuner Hauppauge HVR 950. I built a separate backend and have
> successfully configured it and have made a few test OTA recordings.
>
> My frontend is a P4 1.6Ghz machine, so I definitely need XvMC for
> any hope. I have the binary NVidia drivers, version 9631 installed
> and am currently running at a 1280x720 resolution. I've had no luck
> trying to get XvMC to work in Myth. I'm thinking next of trying the
> SVN versions, although I really don't want to mess with my backends.
> Will I cause problems running the current SVN on the frontend but .20
> stock on the backends?
>
> I just noticed the release-20-fixes in SVN. I think I'll give that
> a shot.
>
> As to what I've tried so far:
> XvMC works in Xine. If I do an strace of Xine, I see it load the
> libXvMCW wrapper, read the /etc/X11/XvMCConfig file, and then load the
> libXvMCNVIDIA_dyanmic.so.1 file. In Xine I can play my new HD
> recordings without studder or any other problems, both 1080i or 720p.
> So I'm fairly confident that the NVidia stuff is setup right.
>
> ./configure --enable-xvmc
> Set the options to Standard XvMC, tried with various and no
> deinterlacing options.
> strace shows mythfrontend loading the XvMCW wrapper, but never even
> attempts to read the XvMCConfig file or load the Nvidia library. The
> OSD display is gray so it's using some sort of XvMC, just not NVidia's
> I don't think.
>
> ./configure --enable-xvmc --disable-xvmcw
> It shows that it's linking to XvMCNVIDIA in the make output, but when
> all is said and done, ldd of mythfrontend does not show it linked to
> the library. strace fails to show any attempts to load the XvMCNVIDIA
> library.
>
>
> A bunch of other stuff has been tried too, but I had to stop messing
> around as my wife wanted to actually use the Myth box :) But I was
> having fun tinkering.
> I've tried various changes in nvidia-settings and xorg.conf, but
> since myth isn't even trying to use the driver, I don't think anything
> else really matters.
>
> And thanks for everything to all of you who do so much. We love the
> MythTV.
>
> Billy
>
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