Hi! Thomas Hilber schrieb: > On Wed, Jul 23, 2008 at 12:12:46AM +0200, Martin Emrich wrote: >> I have connected my VDR box to my TV via a DVI-to-HDMI cable, set the >> resolution to 1920x1080 and let the graphics card do the upscaling >> instead of the TV, because the quality looks IMHO better this way. But > > ok. But if doing so you still have to continue deinterlacing in > software. This is because any scaling in Y dimension intermixes even/odd > fields in the frame buffer. Finally producing a totally messed VGA output > signal. Of course. As I also use other applications on the box (mplayer, photo viewing), neither reducing the resolution nor enabling interlacing (1080i) is desired. Software deinterlacing is no problem, from time to time I experiment with all the interlacer options. (I wonder why there's no simple "TV simulator" that upmixes 50 fields/s to 50 frames/s just like a CRT TV?). > right. Even if you still must use software deinterlacing for some reason > you benefit from the 'sync_fields' patch. You then can enable > sync-to-vblank and the patch dynamically synchronizes graphics card's vblanks > and TV signal's field updates. Thus avoiding unsteady frame rates at > VGA/DVI/HDMI output. Ok. I'm really busy currently (but your project looked so cool that I just *had* to write an email to the list), but as soon as I get to it, I'll try to make it work. Does anyone have a 1080p@50Hz modeline ready? Currently, I use the settings provided by the TV via EDID, and I guess it defaults to 60Hz :( >> I wonder if your patch could be applied to a DVI/HDMI connection, too? >> Its a Radeon X850 currently with xf86-video-ati 6.6.3 and xorg-server 1.4. > > In your case the only prerequisite is support of your Radeon X850 by Radeon > DRM driver. DRM normally is shipped with kernel. So this is a kernel/driver > issue. But I don't expect problems here though I not yet testet the > X850 myself (yet). As the box runs a home-built netboot mini distro, I am quite flexible regarding kernel versions. As soon as I have some spare time (probably after I finished my BA thesis :(, I get to it... Ciao Martin _______________________________________________ vdr mailing list vdr@xxxxxxxxxxx http://www.linuxtv.org/cgi-bin/mailman/listinfo/vdr
