Hi Luca, > A: Im no expert either (far from that, actually), but I think the > good/expensive hardware wont be necessary.. I mean, if I choose to have like > 10 virtual desktops and hold down Ctrl+Alt+Right Arrow Key, the VD's change > so fast until the last one that I can barely notice anything... And thats on > a low configuration machine. But that is on a single monitor. If I understand your intent correctly, you want to multiplex the signal over 10 different monitors, which is the real challenge here. I'm not so sure what a monitor does when you suddenly disconnect it for a (short) while, since it will probably lose the syncing signals.
If you build your hardware clever enough so it will always connect the syncing signals to all monitors, and connect the signal pins to ground (or something) when the monitor is not "selected", this might work, provided that your monitor is "slow" enough (if it switches to black fast enough, you'll be looking at a monitor that is black 9/10th of the time). Apart from that problem, I think timing will be critical here. Even if you can switch fast enough, you should make sure that you're switching the virtual desktop (ie, the image on the VGA output) at exactly the same moment as you're switching the output in your switchbox. Any offset here means that the image of one screen is visible on another screen, which might not bee all too noticable, but will probably lead to a lot of people with a headache in the long run. Not trying to demotivate you, but I have serious doubts about the feasibility of your approach (that, or I'm completely misunderstanding what you're trying to do...). Going down the typical multihead road with at least one VGA output per display is probably going to be a lot easier (but still challenging to get working properly probably, if you're going to share an X server between multiple users). I'd expect that PCI videocards should be available in plenty in the second hand market, lots of people still have them piling up at home I think. Gr. Matthijs
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