On Thursday 26 Aug 2010, Thomas Hilber wrote: > When I started to setup my VDPAU machines (end of last year) I > first made sure that the Xserver really is running a 50Hz modeline. > I mostly play 25/50Hz streams. This way I found an Xserver > bug/misbehavior. Only if I explicitly set the modeline params manually > in xorg.conf I get real 50Hz output (instead of 60Hz). > Please see attached my xorg.conf. Always try: > > DISPLAY=:0 nvidia-settings --query RefreshRate > > to verify. Even the Xorg.0.log lies about the fact that 50Hz are active > but in reality it uses 60Hz. Maybe nVidia has fixed that in the > meantime. > > After this tuning to a channel with live ticker gives me perfect > results. There is not any judder at all. > > The problem with all this juddering is that the symptom 'judder' > alone gives you no hint at all about the root cause of the problem. I've been following this thread with interest... I had been happily running vdr-1.7.0 with a Matrox G450 video card, softdevice, and a CRT TV. At first, I was using a home-built VGA-SCART lead (these cards can generate composite sync so no need for combining sync signals), and then I found a VGA-sVideo cable (came with a similar graphics card at work, ahem!). Then my old TV blew up and I now have a full-HD LCD TV. I've been using the same setup with the new TV and it still works pretty well for the SD signals I can currently receive. HD is starting to appear in the UK and it seems like a good time to replace my current P4-based vdr box with a smaller, low power unit, and an Nvidia ION systems seems to be the current option (although a lack of PCI slots is a tad worrying, at least for the small form-factor boards!). A couple of quick questions... What is the "best" method for my current SD broadcasts: home-made VGA- SCART lead or HDMI? (Do any of these boards have sVideo these days?) Do I run the X server at the SD resolution or at 1920x1080 and let xine rescale rather than the TV? I'm guessing run the X server at 1920x1080 and then both SD and HD work easily together (with full HD OSD?). I toyed with the xine and the xineliboutput plugins a _long_ while back: which is the easiest option for getting VDPAU working? Thanks, Cheers, Laz _______________________________________________ vdr mailing list vdr@xxxxxxxxxxx http://www.linuxtv.org/cgi-bin/mailman/listinfo/vdr
