On Mon, 06 Dec 2004 10:25, Steve Holdoway wrote: See:- I've met this sort of thing before. Some projectors seem to need the synch frequencies to be correct with a much greater degree of precision than others.
Certainly many of them seem to be a great deal more picky than your normal run-of-the-mill multi-synch monitor. See [1] for the gore. Folks, like me, who have difficulties with mental arithmetic might find the Finnish modeline calculator useful. [1] http://en.tldp.org/HOWTO/XFree86-Video-Timings-HOWTO/index.html [2] http://delenn.tky.hut.fi/amlc/ > ...unfortunately the problem was that the projector was seeing the > incoming video as 480x360, which has nothing at all to do with X, which > was fixed as 800x600. That's indeed odd! > On Mon, December 6, 2004 9:20 am, David Kirk said: > > Rik, > > > >> Yes, I agree that giving device frequency synchronisation a chance is > >> important. However from seeing your success Yuri, I'm currently > >> suspecting KDE helped out where Gnome has failed. I'll post any > >> conclusive evidence or other ideas asap. > > > > KDE and Gnome are just desktop environments. They don't control the > > size or resolution of your screen. That is what X does. You were > > listening to Michael's talk a couple of months ago weren't you :-) > > > > I would suggest that you create a couple of X configuration files that > > are known to work with your projector and make them available on the > > CLUG wiki for presenters to download and install before meetings. > > > > These configuration files (1 for XFree86 and 1 for X.org) should use > > the generic VESA driver. All video cards should work with this > > driver. > > > > If you don't know how to do that, then send the spec's of your > > projector to the list and I'm sure someone can do it for you. > > > > -- > > Later > > > > David Kirk > > > > ** Beware the dreaded GMail reply-to header if replying to this message > > ** -- Sincerely etc., Christopher Sawtell
