Christian Berger wrote: > > Devrim Erdem schrieb: > > > > Hi, > > > > I want to genlock two Nvidia Xfree running PCs to an external source. I > > am looking for a hardware or software solution. I appreciate any links > > or pointers on the subject ? > > Well there is a hardly documented feature on the feature connector which > might be used for that, it has some "external-sync-enable" pins. I've > tried to mess around with them, but had no luck. > > > If there is none, I am looking into writing a software genlock but I am > > clueless about how Xfree manages genlock ( or VSync and HSync ). > > I'm not even sure if that's possible by software, I mean you would have > to tell the graphics card when to start the image quite acurately. As > well as you have to have fine control over the clock.
There is a software genlock at sourceforge: http://sourceforge.net/projects/softgenlock It is made for synchronizing for multi-screen stereo, where horizontal accuracy doesn't matter. If you're trying to get a precise alignment for overlaying video, software genlock is definitely not going to work. Getting genlock to work well also requires a really good SYNC signal. Getting it to work well is hard to do. Joe Krahn _______________________________________________ Xpert mailing list [EMAIL PROTECTED] http://XFree86.Org/mailman/listinfo/xpert
