Ensure that it is running under a supported resolution, Set it to 1024X768 as this is standard and apply these settings. These are all done on the working Windows 7 PC. 1.)Right click on the desktop and select properties. 2.)Now under the settings tab set the resolution slider bar to 1024X768. 3.)Apply settings. 4.)Power PC off. Now reconnect the monitor to your Xp PC and it should display, because it was working and now it doesn't it may be safe to say that the configuration of the Win7 PC has changed the settings of the monitor. This should solve your problem, though I know it definitely works in a case where by you have one computer connected and it is connected to one screen and then it is changed for some reason. If you still have trouble with this I suggest you go through my tip relating to this kind of problem, it is entitled My Computer is not turning on!!! Is it dead!!! No POST!!! Another thing that you can try, this would determine if the XP computer is faulty is use a friends Monitor preferably of similar size. Note the section on Graphics cards
All the best
damnor01
Now it comes down to the XP PC try hitting the delete key to enter BIOS/CMOS during startup also maybe while you unplugged it, the graphics card settled a bit out of place. Remove the side panel and remove the graphics card, there may be a clip, so release this by pushing it down. Now reinstall the card by aligning it up and firmly and slowly seat the card into the slot. Ensure the clip pops up and lock it into place. Try using both DVI and VGA outputs on the graphics card, if you are using a graphics card remove it and then use mainboard VGA/DVI. If this doesn't work then you might need to remove the BIOS/CMOS battery for about a minute and then reinstall in the correct orientation. Enter the BIOS/CMOS by hitting the delete key during setup to set the date and time. Now if this doesn't work, find a monitor to borrow, if this still doesn't work then follow my guide. My Computer is not turning on!!! Is it dead!!! No POST!!!
This will diagnose the faulty component, it may and sounds like a loose connection. Some-times in a situation like this one gets a bit on edge as your PC now doesn't work. Don't worry, enjoy some tea/coffee and just relax. You may come to realise it is a simple mistake, it happens.
damnor01
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Basic LCD monitor troubleshooting guide:
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
Failed TV and Monitors: http://s807.photobucket.com/home/budm/allalbums
http://en.wikipedia.org/wiki/Capacitor_plague
Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.
Please post back what you find.
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I followed the steps you outlined. When I hooked it back up to the XP PC I got the same
info: No VGS signal, 1440x900-60hz. Showed this info then monitor went to sleep.
Any ideas?
Finally was able to solve with the help of your comments!
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