On 29-Jul-01 Sam Varghese wrote: > On Sun, Jul 29, 2001 at 11:02:48AM +0100, Ted Harding wrote: >> On 29-Jul-01 Sam Varghese wrote: >> Red, Green and Blue, the synchronisation signal >> goes on the Green channel, and the resolution is >> fixed at 1280x1024. In this case the main issue is >> coping with the sync-on-green. > > Thanks very much for taking the trouble to reply in so > much detail. > > I probably will look for the adaptor which you mentioned > as these monitors are both Mac monitors - Supermac STD9782-E. > > I've managed to find the vertical and horizontal sync rates. > > Does the sync on green mean that you can't use a terminal > while in X?
No -- it's rather the other way round: in XF86Config you can set 'Option "sync_on_green"' so that you get it when X is running (the X driver sends some magic signals to the card so that it generates a sync signal on the green channel), whereas when you're in text mode that hasn't happened (or has been reset) so the monitor doesn't get the sync signal. Since these really are Mac monitors, I'd guess that the ideal solution would be the adaptors: then you should get the sync signal in every case because it's physically wired across in the adaptor, and these adaptors are supposed to be made precisely for the job of connecting a Mac monitor to a PC. However, I'm no expert on Mac monitors (once I briefly used one, of old vintage, with such an adaptor), so rather than trust me in every detail do enquire carefully about the combination of adaptor and model of monitor. The situation is subtly different from a sync-on-green generated from the card itself, since that has somewhat different voltage and timing characteristics from the sync signal which comes down the sync lines on a PC (actually there are two, vertical sync and horizontal sync, and the adaptor uses electronics to drop one of them onto the green line). Once again, good luck! Ted. -------------------------------------------------------------------- E-Mail: (Ted Harding) <[EMAIL PROTECTED]> Fax-to-email: +44 (0)870 167 1972 Date: 29-Jul-01 Time: 16:27:14 ------------------------------ XFMail ------------------------------
