[vdr] Re: softdevice & nvidia overlay issues (Stefan Lucke)
oauk32v02 at sneakemail.com
Tue Jun 27 13:24:43 CEST 2006
Thanks for your response.
> > I'm using VDR 1.4.0-2, softdevice cvs 2006-5-30, nVidia 6200TC video card,
> > nVidia binary driver 8762, Xorg 6.8.1, TV-out (NTSC) @ 800x600x24bpp, GCC
> > 4.1.1 .
> Newer nvidia cards do not support Overlay mode:
Wow, I'm blown away by this. I had no idea nVidia would do something this
dumb. The newer cards support XvMC, does this option help my situation
'Option "XvmcUsesTextures" "boolean" Forces XvMC to use the 3D engine for
XvMCPutSurface requests rather than the video overlay.' ? I guess it
might if softdevice supports XvMC.
I noticed tearing during DVD playback using xine and mplayer, I guess it
is also because there is no video overlay support in my card.
> > For OSD, if I use "psuedo", in full-screen mode, the entire OSD "blinks"
> > when there is video and the OSD is not usable. If I use "software" for
> > OSD setting, then OSD looks OK but when overlayed over video, OSD colors
> > are all wrong.
> Wrong OSD color only ?
> Or both video and OSD ?
The OSD color was messed up only when there was video (I was using the
"dvd" plug-in for VDR). Without any video, the OSD colors look fine
(either psuedo or software).
> Use softdevice setup OSD and try to change the HUE value to max (100).
> If you can read german, have a look at this:
No, I can't read German but I'll try this through a translation website.
> > I've seen similar behavior on a TNT2 using the opensource "nv" driver, and
> > other bizarre problems using ATI cards (both opensource and ATI
> > proprietary drive), so I think something in softdevice OSD code is
> > incorrect.
> Radeons (rv280:9200 and rv350:9550) work fine even with pseudo mode
> using Xorg 7.0 here. The limitation in pseudo mode is, that it is not a real
> alphablend mode.
I found with ATI, if the screen resolution was less than 800x600, than the
OSD very messed up. That isn't a huge problem actually, but I just moved
to a PCI-Express system and all my ATI cards are AGP :( .
Also, ATI does not seem to support XvMC. What is the status of XvMC
support in softdevice?
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