[mythtv-users] XvMC Problem and Question

Sérgio Gaspar smmg at nukitel.com
Fri Feb 10 15:59:53 UTC 2006


>
> Much thanks for the reply. I tried your suggestion, uninstalling with
> the installer and unmerging the 7676 drivers, basically starting
> completely from scratch and re-loading 7676 and myth.
>
> FWIW this is an amd64 3700 running Gentoo 2.6.15
>
> I still get (when trying to use XvMC):
>
> Using XvMC version 1.0
> XvMC found and using IDCT surface
> Using xv port 240
> Unable to create XvMC context return status 11 BadAlloc
>
> Other than this things work OK.
>
> So, I am running out of ideas, but I have one more:
>
> I'm using both the VGA and the composite output, driving a 14" LCD
> (vga) and a 32" LCD (via composite). Is there a problem using XvMC
> while driving two outputs. I've gone through the nVidia README and
> haven't seen a prohibition against that but it does allude to some
> limitations.
>
> Thanks again.
>

Well, I'm also running myth on an amd64 (3000+ Venice core) and I can't
get XvMC to work. Some time ago I asked for help on this list and someone
told me that it was a  problem with the nvidia driver on 64bit machines,
so I gave up.

I don't read all messages on this list but since then I have never read a
success story regarding XvMC on AMD64 using Geforce FX 5200 or better
nvidia cards.

The result is that I can use the PiP function and have colour OSD, and I
know  that the PiP doesn't work and OSD is B&W while using XvMC (had XvMC
working on an Athlon XP). The only anoyance for me regarding not using
XvMC is that the CPU cooler runs faster and it's the noisiest fan on my
system.

On the old Athlon XP I was able to use XvMC on the TVout, the VGA output
was still active at a different resolution but I don't remember if XvMC
was working there too. This means you can have two outputs and that won't
stop you from using XvMC at least on one of them.

Good luck.





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