libXvMCNVIDIA shared object problems

Thecko · 04-08-03, 02:02 PM

Hi,

Sorry if this has been brought up already elsewhere but I did a search on the forums and I cannot find any reference to this..

I am currently trying to get wine setup on my slackware 8.0 box (kernel 2.4.18 / glibc-2.2.5-i386-2)

When I try to run wine I get the following error.

err:module:BUILTIN32_dlopen failed to load .so lib for builtin x11drv.dll: /usr/X11R6/lib/libXv.so.1: undefined symbol: _xvmc_create_context

(libXv.so.1 is a symbolic link to libXvMCNVIDIA.so.1.0.1491)

When inspecting the static library libXvMCNVIDIA.a I find that it does contain a reference to the symbol that wine is trying to load ..... Is this symbol missing from the shared library, or am I having some other problem here? I can envisage having to download the wine source and compile it myself, but I would prefer to use the package I have, as I'm a little time-restrained ... Does anybody have any ideas/suggestions?

Thecko · 04-08-03, 02:56 PM

actually I have just double checked the static library I have and the symbol is undefined (whoops) ... Does anyone have any idea when this function will be implemented in the driver?

bwkaz · 04-08-03, 03:14 PM

What does nm /path/to/libXvMCNVIDIA.so | grep _xvmc_create_context tell you? Is it listed there with a T or a t? Or does nm tell you the same thing it told me -- "no symbols"?

That might be part of the problem, if there are no symbols in the library...

Does anything useful come from a Google for Linux (that's www.google.com/linux) search for the function name?

Thecko · 04-08-03, 03:24 PM

root@direct:/usr/X11R6/lib# nm libXvMCNVIDIA.so.1.0.4191 | grep create_context
nm: libXvMCNVIDIA.so.1.0.4191: no symbols

I tried searching on google et al first but found nothing useful, only a couple of references to people getting the same missing symbol while using .... nvidia video cards!

Thecko · 04-20-03, 08:44 PM

Just re-querying if anybody has any ideas over this?

bwkaz · 04-20-03, 10:37 PM

Well... my libx11drv.so file doesn't care about that symbol (it's also listed as unimplemented in the static library). So I have a feeling the best way to do it is going to be recompiling wine.

Where'd you get the wine binaries from?

**Thunderbird** · 04-21-03, 10:42 AM

Don't make a link from libXv.so.1 to libXvMC...
XvMC is not the same as XV.

XvMC is a new multimedia related library that provides mpeg2 acceleration and motion compensation. If it were used in a media player and your card supported it (needs a gf4mx or better) than it would decrease cpu usage...

Xv is a multimedia library used for hardware video overlay support. To say it a bit easier it is for example used to accelerate video playback. (scaling and so on)

To fix your problems use a real libXv and drop the link to libXvMCnvidia...

04-08-03, 02:02 PM	#1
Thecko Registered User Join Date: Apr 2003 Posts: 4	libXvMCNVIDIA shared object problems Hi, Sorry if this has been brought up already elsewhere but I did a search on the forums and I cannot find any reference to this.. I am currently trying to get wine setup on my slackware 8.0 box (kernel 2.4.18 / glibc-2.2.5-i386-2) When I try to run wine I get the following error. err:module:BUILTIN32_dlopen failed to load .so lib for builtin x11drv.dll: /usr/X11R6/lib/libXv.so.1: undefined symbol: _xvmc_create_context (libXv.so.1 is a symbolic link to libXvMCNVIDIA.so.1.0.1491) When inspecting the static library libXvMCNVIDIA.a I find that it does contain a reference to the symbol that wine is trying to load ..... Is this symbol missing from the shared library, or am I having some other problem here? I can envisage having to download the wine source and compile it myself, but I would prefer to use the package I have, as I'm a little time-restrained ... Does anybody have any ideas/suggestions?

04-08-03, 03:14 PM	#3
bwkaz Registered User Join Date: Sep 2002 Posts: 2,262	What does nm /path/to/libXvMCNVIDIA.so \| grep _xvmc_create_context tell you? Is it listed there with a T or a t? Or does nm tell you the same thing it told me -- "no symbols"? That might be part of the problem, if there are no symbols in the library... Does anything useful come from a Google for Linux (that's www.google.com/linux) search for the function name? __________________ Registered Linux User #219692

04-20-03, 10:37 PM	#6
bwkaz Registered User Join Date: Sep 2002 Posts: 2,262	Well... my libx11drv.so file doesn't care about that symbol (it's also listed as unimplemented in the static library). So I have a feeling the best way to do it is going to be recompiling wine. Where'd you get the wine binaries from? __________________ Registered Linux User #219692

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04-08-03, 02:56 PM	#2
Thecko Registered User Join Date: Apr 2003 Posts: 4	actually I have just double checked the static library I have and the symbol is undefined (whoops) ... Does anyone have any idea when this function will be implemented in the driver?

04-08-03, 03:24 PM	#4
Thecko Registered User Join Date: Apr 2003 Posts: 4	root@direct:/usr/X11R6/lib# nm libXvMCNVIDIA.so.1.0.4191 \| grep create_context nm: libXvMCNVIDIA.so.1.0.4191: no symbols I tried searching on google et al first but found nothing useful, only a couple of references to people getting the same missing symbol while using .... nvidia video cards!

04-20-03, 08:44 PM	#5
Thecko Registered User Join Date: Apr 2003 Posts: 4	Just re-querying if anybody has any ideas over this?

04-21-03, 10:42 AM	#7
Thunderbird Join Date: Jul 2002 Location: Netherlands, Europe Posts: 2,105	Don't make a link from libXv.so.1 to libXvMC... XvMC is not the same as XV. XvMC is a new multimedia related library that provides mpeg2 acceleration and motion compensation. If it were used in a media player and your card supported it (needs a gf4mx or better) than it would decrease cpu usage... Xv is a multimedia library used for hardware video overlay support. To say it a bit easier it is for example used to accelerate video playback. (scaling and so on) To fix your problems use a real libXv and drop the link to libXvMCnvidia...