Mailing List Archive: MythTV: Users

Re: XvMC on NVidia with Myth .20 (Anyone getting good HD off a P4 3.2G or less without XVMC?)

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ncrosno at ipass

Jan 4, 2007, 7:53 AM

Post #1 of 5 (732 views)
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Re: XvMC on NVidia with Myth .20 (Anyone getting good HD off a P4 3.2G or less without XVMC?)

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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ali.asad.lotia at gmail

Jan 4, 2007, 8:08 AM

Post #2 of 5 (698 views)
Permalink

Re: XvMC on NVidia with Myth .20 (Anyone getting good HD off a P4 3.2G or less without XVMC?) [In reply to]

I'm running on a p4 3.2 Ghz machine which is running Gentoo Linux and
I've installed Myth using the ebuilds. My machine specs are:

p4 3.2Ghz with hyperthreading enabled
2GB RAM
Gigabyte P945 based motherboard
4 x SATA 300 HD.
Gigabyte GeForce 6600 PCI Express VGA
1 x PCHDTV 3000 PCI HD tuner card
1 x PVR-500 PCI SD tuner card

I have no problem playing back HD without XvMC enabled and this is a
combined frontend backend machine. I am currently not displaying at HD
resolutions since I don't (yet) have and HD display, but the machine
is decoding an HD stream.

Hope this helps.

--
Ali

On 1/4/07, Nate Crosno <ncrosno[at]ipass.com> 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
>
> __________________________________________________
> Do You Yahoo!?
> Tired of spam? Yahoo! Mail has the best spam protection around
> http://mail.yahoo.com
> _______________________________________________
> mythtv-users mailing list
> mythtv-users[at]mythtv.org
> http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
>
>
>
_______________________________________________
mythtv-users mailing list
mythtv-users[at]mythtv.org
http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users

newbury at mandamus

Jan 4, 2007, 4:22 PM

Post #3 of 5 (688 views)
Permalink

Re: XvMC on NVidia with Myth .20 (Anyone getting good HD off a P4 3.2G or less without XVMC?) [In reply to]

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

Nate you may want to look into getting a VGA -> DVI adapter cable. Your
on-board video chipset probably has quite reasonable resolution
capabilities out the VGA port.

Geoff
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mythtv-users mailing list
mythtv-users[at]mythtv.org
http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users

ncrosno at ipass

Jan 4, 2007, 5:14 PM

Post #4 of 5 (700 views)
Permalink

Re: XvMC on NVidia with Myth .20 (Anyone getting good HD off a P4 3.2G or less without XVMC?) [In reply to]

I tried that when I first got the TV, but on a different computer. A
simple adapter will not work. The TV needs a digital signal.

-----Original Message-----
From: mythtv-users-bounces[at]mythtv.org
[mailto:mythtv-users-bounces[at]mythtv.org] On Behalf Of R. G. Newbury
Sent: Thursday, January 04, 2007 4:22 PM
To: Discussion about mythtv
Subject: Re: [mythtv-users] XvMC on NVidia with Myth .20 (Anyone getting
good HD off a P4 3.2G or less without XVMC?)

Nate you may want to look into getting a VGA -> DVI adapter cable. Your
on-board video chipset probably has quite reasonable resolution
capabilities out the VGA port.

Geoff
_______________________________________________
mythtv-users mailing list
mythtv-users[at]mythtv.org
http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users

_______________________________________________
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http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users

dave at optionsdsl

Jan 4, 2007, 7:59 PM

Post #5 of 5 (696 views)
Permalink

Re: XvMC on NVidia with Myth .20 (Anyone getting good HD off a P4 3.2G or less without XVMC?) [In reply to]

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
>
> __________________________________________________
> Do You Yahoo!?
> Tired of spam? Yahoo! Mail has the best spam protection around
> http://mail.yahoo.com
> ------------------------------------------------------------------------
>
> _______________________________________________
> mythtv-users mailing list
> mythtv-users[at]mythtv.org
> http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
>

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mythtv-users mailing list
mythtv-users[at]mythtv.org
http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users

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