Hi all, I'm new to this community. I've a problem which is not regular. When i switch on my computer it boots up and displays the login screen when i enter my login my monitor turns off and cpu light only glows. in that situation i cant swith off my computer wihtout switching off the main power... Can anyone resolve my problem.....??? Thanks in advance....

Hi Raj and Welcome.

This "sounds" like your graphics card (or motherboard's on-board graphics) is failing to synchronize with your monitor when the system is attempting to change resolutions, which it does during boot.

The first thing I would do is try another monitor, and/or try your monitor on another computer. This will quickly isolate the problem to the computer, or the monitor.

Try booting into Safe Mode and see what happens.

When did this problem start? Tell us about your computer.

Hi,
Thanks for replying.. This is my system info..

OS Name Microsoft Windows XP Professional
Version 5.1.2600 Service Pack 2 Build 2600
OS Manufacturer Microsoft Corporation
System Name PC-C2657CD46417
System Manufacturer INTEL_
System Model D915GLVG
System Type X86-based PC
Processor x86 Family 15 Model 4 Stepping 1 GenuineIntel ~2667 Mhz
BIOS Version/Date Intel Corp. VG91510A.86A.0048.2005.0722.1031, 7/22/2005
Adapter Type Intel(R) 82915G/GV/910GL Express Chipset, Intel Corporation compatible
Adapter Description Intel(R) 82915G/GV/910GL Express Chipset Family....

I ran my system in safe mode but it runs well... I said its not a regular probm whereas it occurs occasionally... For eg when i switch on after a break of 24hrs, prbs occur...

Well, Safe Mode uses a standard VGA resolution so the fact it works there is a good indication that Windows is fine. But at this point, we still don't know if it is your monitor, or something trying to talk to the monitor. So my suggestions from above still apply. Do make sure you don't have a loose connection now and note some monitors have a detachable video cable so check the back of the monitor for loose connection too.

Hi,

Also, I would like to suggest you run the Last Known Good Configuration before running the saft mode if you have the PC and the monitor used to worked ok.

This will load the good hardware profile and may get your monitor to work with your PC before the error occured.

To run the Last Known Good Configuration, please pressing the "F8" key when powering on the PC, then select from the boot manual "Last Known Good Configuration", but this option must run before the safe mode in order to get the previous working hardware profile.

Hope this helps.

Since this is an intermittent problem, Last Known Good Configuration will not be of help because it only works to the last successful boot. The settings are not retained beyond that. Note the limitations as stated in MSKB Article 307852, my bold & underline added:

Use the Last Known Good Configuration feature when you cannot start Windows XP after you make a change to your computer, or when you suspect that a change that you just made may cause a problem.

Hi Digerati,

Thanks for the quick feedback.

Would you consider this is the VGA driver or maybe Viruses problem that caused the intermittent error?

Nice to share your opinion.
Thanks.
Nice day.
Bill

hi all..
I checked all the connections and are fine... Still my probs not resolved.. wat to do???
Waiting for best solution....
Tanks in advance...

Originally Posted by PcTestCard.com

Hi Digerati,

Thanks for the quick feedback.

Would you consider this is the VGA driver or maybe Viruses problem that caused the intermittent error?

Bill

Sorry Bill, I did not get a reply notification for your reply.

I don't see a virus causing an intermittent error - at least not one that could not be reproduced by doing whatever the malicious code was looking for. However, while I may not suspect malware is causing any particular problem or problems, I always suspect there may be malware present on any given machine not under my control - or at least I want to establish/adjust some sort of security and troubleshooting baseline by eliminating any potential threats or causes, even if remote. Checking for malware is a fairly simple task and so I say eliminate the (often overlooked) easy pickings first.

A corrupt driver, for sure, because who knows what resource (memory location?) the GPU and CPU are hitting (or not hitting) during any particular graphics call by some file some program is using? The issue then becomes, how was it corrupted? Power anomaly? HD crash? Malware? Hardware failure? Gremlins? However, a corrupt VGA driver would probably result in problems in Safe Mode too. So, that could point to the graphics card driver being corrupt, causing the monitor to fail to sync up when Windows wants to switch to higher, non-VGA resolutions.

But...

Originally Posted by Raj

Waiting for best solution....

You got to help us, Raj, if you want us to help you. In my first post, I said,

The first thing I would do is try another monitor, and/or try your monitor on another computer. This will quickly isolate the problem to the computer, or the monitor.

In my second post I said,

But at this point, we still don't know if it is your monitor, or something trying to talk to the monitor. So my suggestions from above still apply.

So once again, Raj, we need to make sure the problem is not a bad monitor that has a part failing intermittently preventing the monitor from synchronizing resolutions with your graphics card. Once we are sure it is not the monitor, then we can start looking at leaky capacitors/failing motherboard, heat, failing power supply, bad RAM, and other harder to troubleshoot problems.

Also asked and not answered was "when did the problem start?" This is important because if it just started 2 days ago, then restoring to a previous System Restore point might be a good option. If it has been doing this for months, and you are just now finally fed up with it, then that is not an option.

Nice to share your opinion.

Hence the whole concept of forums!