Actually, Yes. It seems like you have answered your own question... Especially considering the monitor works on another computer.
Do you have another monitor to test on this computer?
Although another consideration could be if you recently installed or downloaded a program which may have changed your video output range to a setting your video monitor wont handle. If this is the case and you can start the computer in safe mode, this will allow you to go into your properties settings and change it back. This way, a new vid card is not req.
Good Luck
SOURCE: monitor will not boot up stays in sleep mode
Hello,
Is your pc got beeps, if yes then try to remove and clean the memory and also the video card if it is add on card. and then insert it again test. if encounter still the same error then try to replace the memory.
please tell me more if ever what you encounter about the issues.
may this help,
melnavz
SOURCE: My computer isn't working...it's in sleep mode and
Hold down the power button until it turns off. Turn oit back on and tap F8. Choose last know good configuration from the menu.
SOURCE: Compaq Presario stuck in sleep mode
Connect the monitor to some other computer, e.g., a notebook, and see if it does the same thing. If it does, then the monitor is the problem.
If it does not, then your computer is not putting-out any "video" signal, and so the monitor goes to "sleep".
If you have MORE than one VGA-output port on your computer, connect your monitor to the "other" VGA port.
Or, press-and-hold the ON/OFF button on your computer, to force it to completely shutdown.
SOURCE: unpacked computer after move moniter will not stay
Hi
please check the cable between the computer tower and the monitor.
either the cable is not connected properly or the cable is defective.
this is a message you normally get when the computer is off, and you try turning on the monitor alone.
hope it helps
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