[mythtv-users] Nvidia just released 8756.

Steven Adeff adeffs.mythtv at gmail.com
Sat Apr 15 14:51:55 UTC 2006


On 4/14/06, Steven Adeff <adeffs.mythtv at gmail.com> wrote:
> On 4/14/06, Steven Adeff <adeffs.mythtv at gmail.com> wrote:
> > On 4/14/06, Michael T. Dean <mtdean at thirdcontact.com> wrote:
> > > On 04/14/2006 05:05 PM, Steven Adeff wrote:
> > > > On 4/14/06, Daniel Kristjansson <danielk at cuymedia.net> wrote:
> > > >
> > > >> On Thu, 2006-04-13 at 23:35 -0400, Steven Adeff wrote:
> > > >>
> > > >>> Brad, I wonder if there are other options that may affect this. Could
> > > >>> you post your Screen and Device sections? Also, do you have Composite
> > > >>> and RENDER both on?
> > > >>>
> > > >> Quote from Andy Ritger @ nVidia:
> > > >> - A Video Overlay Xv Adaptor is obviously fundamentally incompatible
> > > >>   with Damage/Composite.  Should X drivers no longer advertise
> > > >>   Video Overlay Xv adaptors if they are running in an X server that
> > > >>   includes Composite support?
> > > >>
> > > >> Composite can not be used with XVideo overlay, and ChromaKeyOSD
> > > >> relies on XVideo overlay. By enabling Composite you are basically
> > > >> enabling "XvmcUsesTextures" which breaks ChromaKeyOSD.
> > > >>
> > > >> Note also that XVideo does not yet play nice with the Composite
> > > >> Extension, so if you enable Composite you should shut down your
> > > >> composite manager before starting up XVideo playback.
> > > >>
> > > >> BTW If you want to have see some semi-transparent MythTV windows,
> > > >> you can make MythTV ignore XVideo by defining the NO_XV environment
> > > >> variable. I can run 4 SDTV instances of mythfrontend on my CPU
> > > >> without XVideo... This will, of course, use significantly more CPU
> > > >> than using XVideo.
> > > >>
> > > >
> > > > Daniel, interesting information. So let me see if I understand...
> > > >
> > > > 1) if using XvMC, turn off Composite
> > > > 2) if using Xv, turn off Composite
> > > >
> > >
> > > AIUI,
> > >
> > > 1) if using XvMC /with ChromakeyOSD/, turn off Composite
> > > 2) if using Xv, turn off Composite
> > > 3) if using XvMC without ChromakeyOSD, take your choice...
> >
> > right, forgot to differentiate the Chromakey stuff.
> >
> > So whats the good word on the RENDER extension?
>
> turned off composite and now things look to be working properly. The
> OSD still is not in color, but the stuttering is at a minimum now
> (only with the full show info OSD) which I can live with considering
> the CPU savings I get overall.
>
> OpenGL Vsync = on
> Deinterlace = off
> Standard XvMC
> 1080i output (but still not through the DVI port, only my 9A60).

I'm close to giving up, if I could only find a combination that works.
This seems to only work sporadicly, I'm now getting really bad
stutter. It seems like this is very finicky...
May have to go back to 7676 and forget about 1080i for now... at least
it worked back then...

--
Steve


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