Dual Monitor Problems

S

struby2

New Member
So I have an LCD monitor and an older flatscreen, and two computers, my older computer, I have set up on the old monitor, and the plan is to put the newer computer on both, but I have a cheap switch that will allow me to switch on the old monitor from old to new computer, with the lcd always having just the new computer on it. Hopefully you are following. My newer computer has a 5770 with 2 dvi ports, on port goes to the new monitor via dvi cable, the other goes to the switch box via vga cable and dvi to vga adapeter, the old computer is hooked to the switch box via vga cable, and the switch box is hooked to the older monitor. At one point I was able to run the new comp on dual monitors no problem, but swapping the cables was a pain, so now I have the switch,

Problem:
but any time I plug the vga cable into the video card on the new computer, neither display shows up, the old monitor is black, and the lcd says no source. I tried restarting and such, whats up? Also, the older display works with the older monitor fine, even with the switch in, but has a flickering issue...:(
 
I might not follow you totally, but if the problem started when you added the switch, I'd say that's probably the issue. Have you tried another switch? Also, what kind of switch is it? If it's not an actual KVM, you should consider "upgrading" to one.
 
its a 6 dollar ebay switch, and upgrading is not in my budget because I'm trying to save money for my upcoming and final year of college, so all of my cash monies are precious. I thought like I always things, a switch is a switch, so i'll ebay that shit for a quarter of the price and boom, again, I have chosen poorly. Same with bluetooth dongle for 2 dollars. Same with audio splitters and such.
 
struby2 said:
its a 6 dollar ebay switch, and upgrading is not in my budget because I'm trying to save money for my upcoming and final year of college, so all of my cash monies are precious. I thought like I always things, a switch is a switch, so i'll ebay that shit for a quarter of the price and boom, again, I have chosen poorly. Same with bluetooth dongle for 2 dollars. Same with audio splitters and such.
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You have heard the saying "you get what you pay for"? Goes with just about everything to do with computers.

I know you said it is a pain to switch monitors if you put them straight into the card, but that would be the only option other than getting a better switch. When you say it says no source when both are in, put just 1 monitor in and set resolution to 800x600 then try with the second monitor. May be that the resolution you had it at is outside the native resolution of the other monitor, so it can't display anything. Normally it would set it to the nativeresolution on its own, but often what I explined just then can happen
 
I plugged in only the old monitor to new computer, in the top port of gpu, put it on 600 x 480 (lowest), then kept settings. I then put everything back exactly how it was and, it worked :), so thanks guys. My newer comp stays in dual monitor mode despite which one is switched on, but I don't think that will be an issue, only thing perplexing me is this: I then went into Catalyst and went to see if I could take the settings up higher, and it auto adjusted it to 1280 x 1024. Why didn't it just do that before and work, because it is still working, was it maybe trying to run it on the same settings as my lcd, higher than 1280 x 1024, and if so why would my lcd turn off just because the old monitor was not handling the resolution? maybe because they were not matching up, but they don't match up now either, at 1920 x 1080 on the lcd and 1280 x 1024 on the old flat screen monitor, so I don't get it.

and the flickering seems to have gone away, at first when I turned my ac off, and now seemingly always
 
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