[mythtv-users] Still scratching my head over xvmc

[Kurt Yoder]

Hi all

I have a working hdtv source, but it's unwatchable right now; it  
stutters, drops frames, etc. I posted about this a few days ago. One  
of the responses was:

"Sounds like xvmc isn't happening. There are a couple active threads  
explaining how to make sure it's enabled and to get it enabled if  
it's not. Take a look at those and add to the existing threads if it  
stil doesn't work for you."

I'm not seeing any of these threads regarding xvmc, so maybe it's  
time to start a new one.

(Whenever I get all this information together, I'm going to see if  
there's anything useful I can add to http://www.mythtv.org/wiki/ 
index.php/XvMC)

Hardware:

I forgot CPU exactly, but dmesg reports "CPU0: AMD Athlon(tm) 64   
Processor 3000+ stepping 02"

video card: nVidia Corporation NV44 [GeForce 6200 TurboCache(TM)]

memory 1 GB ddr (forgot speed)

motherboard I forgot, though I know it's based on nvidia's nforce  
chipset

...sorry for all the "forgetting", but I built this thing a year ago,  
and now it's hooked up and rather inaccessible


Software:

myth 0.20
linux kernel 2.6.17
nvidia 8776 drivers


Other info, which may be relevant based on some of the threads I've  
read:

Myth is definitely set to use xvmc, but when I press the "i" key  
during playback I see a blue box with a red border at the top right  
of the screen. If I press it again, I see a blue trapezoid with an  
upper left red box on the lower portion of the screen. Since I hear  
I'm supposed to see a grey box instead, I take it this means xvmc is  
not enabled after all?

root at corn:~# ldconfig -v | grep GL
         libGLcore.so.1 -> libGLcore.so.1.0.8776
         libGL.so.1 -> libGL.so.1.0.8776
         libGLU.so.1 -> libGLU.so.1.3.060501

root at corn:~# cat /etc/X11/XvMCConfig
libXvMC.so.1

I also tried setting this to libXvMCNVIDIA_dynamic.so.1 as in the  
wiki article and restarting X, but I still see the blue OSD.

Myth is a binary package from http://www.debian-multimedia.org. It  
looks like it was configured with xvmc, since I see this in the  
control file:

ifeq "$(DEB_BUILD_ARCH)" "i386"
         CONFIGURE_OPTS += --tune=i486 --enable-xvmc --enable-xvmc- 
vld --enable-xvmc-pro --enable-mmx



So what is my next step in getting xvmc working so I can watch HD?



Thanks

--

Kurt Yoder
http://yoderhome.com