My computer doesn't see my samsung monitor if I boot up with the power off to the monitor. I am running a dual monitor setup. If I turn on the power to the monitor & reboot, it will work fine.

Could be a feature in the bios or a virus. I would do some research on the matter.

check by changing the power cord if this does not solve the problem the fault is in the power of the monitor better call technician or take it to the service centre

does your friend laptop supports dual monitor if does you need another monitor a larger one so that your friend wont have a problem with his poor eyesight. But if it doesn't support dual or multiple monitors do the same buy a new monitor a larger one.

deff. i could bet 99.9999 percent you got a saver virus that did this . there is a easy fix. when u turn the power on do u see the beginning of boot up were it says f12 for setup. if so u would be able to click on boot options and reinstall windows with a windows cd (xp,vista or seven) if this does nto allow you a good way to check if its the mother board or not. if u take the memory out of your motherboard and start computer you should here 6 beeps. if you do not here 6 beeps this tells us its the mother board

this sounds like the screen may be trying to display a resolution higher than the screen can support. Try booting up in safe mode and seeing if you can see your desktop. Also is this the only monitor connected to your PC or is this a dual screen setup? If it is dual screen you may not have your second montor turned on.

It sounds like the monitor might have switched input modes for some reason. You can use the menu on the monitor to scroll through the DVI and VGA settings to make sure it is using the right method of connection.

Good Luck!

Jesse

Is the PC actually doing to sleep or is the display just amber with the fan and power light on the PC still running?

Do you have multiple video cards or multiple ports?
You may have the monitor plugged into the non-default port on your video card or the wrong card. Try plugging the monitor into another port as the PC should use all outputs when booting but then define a default display once the driver is loaded. Also take a look at the default video display in your BIOS settings. Depending on what your setup is you should be able to choose between (onboard, PCI, AGP)

I have an A105 set up on dual screens, and it works great. As I recall, you have to do the dual screen setup in the control panel, display, settings.

I too have a dual monitor Samsung SyncMaster 204 setup. My monitors started flickering, then a week later had turn on problems like your describe. I found a fix on this fixya website and followed the fairly techie suggestion. It worked. I wrote up a .pdf set of instructions so others might also benefit. Hope this helps. Doug

1.both monitors work in single mode ok.

when you start the nvidia contol panel under the display heading
you have setup multiple displays. What does this say.

are you using the nvdia drivers or the cards oem drivers ?

plug one monitor in then start the computer when that monitor works ok , turn off and plug in the other ...

hope this helps