Err got a bit of a problem here, windows xp no longer outputting screen signal

[dlthorpe]

So yeh, this is weird, and in the many years i have worked in tech support ive never seen this.

So today i decide to unplug a 200GB hdd and put in a 80gb one. This was only a spare drive and nothing to do with the system boot.

So i turn on the pc and i can see dos, i can see the windows logo, but then when i should see the login my screen goes black, the monitor searches for analogue and digital signal - but no one is home. I know the system has loaded to that point because its audibly active, and if i try to login it works. i just cant see it.

So the weird thing is it works fine in safe mode, i can see the monitor outputting via a digital and analogue signal at various resolutions. i just get nothing no matter what i try on a normal boot.

So i test things, another monitor does the exact same thing on my system. MY monitor on another system works fine. Cables are fine. I've tried plugging in the HDDs back to their original configuration, just the system one on its own - but to no avail. Its really all good except for the damn normal windows boot!!!

Any one ever heard of this? What can it be!!! Please help if you have any ideas as im totally clueless. But im guessing something in my OS install is fubar.

Thanks!
D.

 

[dlthorpe]

Thanks for replying all...

Well, you have ruled out the monitor. Is this using the graphics card, if so try the on-board? Any overclocks in place?

I dont have on board but i believe the GFX card is fine because it does display the picture both digital and analogue for safe mode in various resolutions. My mobo doesnt have onboard either. The gfx card is only overclocked when running games via WinFox - its an Nvidia GTX 7800.

RE - the other two posts, F8 is the key for me for Safe mode and yes ive been in here fine. The drivers could be screwed i suppose so ill try uninstalling it and letting windows detect again.

I did also try having two monitors plugged into the gfx card so that if it was a dual monitor issue that might pick it up. No luck tho.

Thanks for the replies again, ill try some driver stuff and let you know.

Ta.
D.

 

[dlthorpe]

Well i fixed it in the end based on your suggetions guys. Basically it was the gfx card driver which i thought was pretty damn weird. But im thinking as i took out a hdd and put another in, that somehow the interrupts or something got mixed up and the new drive conflicted with the gfx card.

As soon as i uninstalled in safe mode, and then booted in normal mode it detected the gfx card and a new driver install worked.

Never seen anything like it before tho lol.

Thanks again all,
D.