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Monitor says no signal

When I boot up my computer the Monitor says no signal, The computer lights are on.I turn the power strip off.The computer and Monitor turn off and then I turn the power strip back on and the Monitor and Computer turn on with out a problem.Sometimes I have to do the above 2 or 3 times.This only happens in the morning when I boot up my system.I think its a Computer problem and not a Monitor problem, The same thing happens when I had my old CRT Monitor hooked up.Can you please tell me what the problem is?Thank You

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  • RBlank111 Dec 30, 2008

    No the computer does not beep at all.I bought the system in January 2008 and this has happened sense March or April. I hope this helps.Thanks knotbeerdan

  • Dan rogers
    Dan rogers May 11, 2010

    does the computer beep several if at all when this happens?

    How long has this been happening

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Is this a brand new system? What is the make/model?

This is a peculiar problem, as the computer was working fine for several months after you purchased the computer, then suddenly started this behavior. The fact that you do establish normal operation after the restart eliminates a few culprits. Your monitor is perfectly fine, as you eliminated that by trying another (same problem). I doubt the problem is your BIOS, as the OEM BIOS is usually a very solid part of the system. Unless you updated it in March/April?

The hardware should be fine--if there's a hardware problem, usually it works or doesn't work, or will work intermittently in an unpredictable manner (meaning, you'd start up and everything would be fine, but later on the video would cut out).

Also, try this experiment: When you start up the computer and you get the "no signal" indicator on the monitor, shut down the computer and leave it off for about 5 minutes. Start it again. If the problem repeats, it could be that there's some kind of software conflict between the operating system and BIOS, but a warm restart bypasses this.

It is possible that a Windows update that occurred around March/April may be conflicting with a driver or the BIOS. There are a couple of things you can try... In the "Accessories > System Tools" there is a System Restore utility. If you haven't made many changes to your system since March/April (e.g. installed a lot of device drivers, components, software), you could try restoring to a point where you are certain the problem wasn't occuring. If that works, you know that a software update is the culprit. If it doesn't, don't worry--you can "undo" the restore and go back to where you were so you don't lose other things you've installed (your registry gets updated frequently over time and you don't want to lose that).

There may be an updated BIOS for your computer as well. If you bought it new, it doesn't guarantee they had the latest installed when you got it.

Good luck!

Posted on Dec 30, 2008

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You should try resetting the BIOS (either by changing the right jumper, or by pulling out the CMOS battery, or whatever religious ritual your brand of motherboard requires, such as sacrificing a chicken on the keyboard), because it sounds like you've got a problem with one of the busses (e.g. the PCI bus, the AGP bus, the Chicago-bound Bus, or whatever). It may only be a software problem, which you might be able to get rid of by resetting the BIOS; but if your computer still displays the same vital signs as an ashtray, then you've got a more serious problem on your hands. Post back here and we'll see then.

Posted on Dec 30, 2008

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what the manufacturer of the unit has to say about inherent design fault which they are liable under UK consumer law to rectify within 6 years

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