Re: Modelines for Apple 30" LCD?
You can't just calculate modelines using GTF or other tools for it. The problem is the bandwith needed for pixelclocks used for high resolutions. In case of DVI the DVI port is limited to a bandwith of about 150MHz. The modelines you calculated use much higher pixelclocks which don't work. (7800 / Quadro DDL cards ship with a dual DVI interface instead of a single one and those can handle upto 300MHz) To get your monitor working you need a modeline with reduced blanking. Various people posted such modelines for this screen, search the forum for it.