> Politely - I think its an X problem. > > My Dell has an ATI video card, which simply does not put out a signal under > linux. I've been meaning to look into the causes - but its been easier to > boot XP for those few times I needed a working VGA port.
If the problem is that the hardware in question doesn't actually send a signal out the vga connector, then there's obviously nothing the projector (or CRT, or ...) can do about it. It's a problem which most likely can only be solved by some $SOFTWARE on said hardware. I don't think that's the only problem though, and that C.S.(?) is right in saying that projectors don't sync to a very big frequency range. With my presentation, the projector wasn't syncing on the console, but was on X (luckily!). It's not a problem on the compujter side, as I only unplugged it at home and took it to the hall. I find it disappointing that an expensive piece of kit doesn't just get on with frequencies a >10 year old viewsonic 15 has no problems with. For future meetings I guess presenters need to make sure that their vga connector put something out, and that it's within the frequency range the projector can understand. The latter would warrant some investigation. Sticking with VESA standard frequencies would probably be mandatory, but it's still not a guarantee as quite a bit of fine-tuning can be done in terms of picture size and position, i.e. adjusting modelines. I know from experience that quite a few monitors simply go black (or beserk) when fiddling the fine-controls too agressively in X. Volker -- Volker Kuhlmann is possibly list0570 with the domain in header http://volker.dnsalias.net/ Please do not CC list postings to me.
