Win 7 Pro, 32 bit stuck at Black Screen during boot up

[Happy Hopping]

When Win 7 pro (32 bits) boots up, as we all notice, there is a second or so when there is a black screen, w/ just your mouse cursor, and then you are supposed to see the blue Welcome screen.

In the past 2 months, my computer is stuck at that black screen about 7 times, as recent as tonight. I've done a clean install w/ the latest Nvidia driver 2 weeks ago. No change. It looks like win 7 Pro is stuck there and waiting for something as my hard drive light blink on and off.

So, I would do nothing, or sometimes I would disconnect the HDMI port connects to my 3rd PC Panel (see below), and I would wait for 5 min. or so. Then my login logo shows up, I click it, and I got to windows.

Now, w/ the normal boot up, I don't have that login logo, win 7 pro will simply boot up directly to win 7 main screen after I turn on the computer.

Some1 said this could be IRQ sensing problem of the video card. But so far, I have no proof on that 1 way or the other:

All these started about 2 months ago, at or near the same time when the Sharp LED TV technician came to my house and upgraded all the firmware, including the firmware that consumers can't download, to my Sharp LED LCD TV, as the power button wasn't working.

Then in the past 2 mth., every time I turned on my LCD TV, which is connected to my computer as the 3rd screen via a DVI to HDMI cable, Win 7 senses this 3rd panel, and the screen went black and back on again. This isn't the way it used to be: as it WAS NOT SWITCH TO THE HDMI PC PORT.

My Sharp LCD has 4 HDMI output. Tonight for e.g., I was on Input 2, which is satellite, but as soon as I turn on the Sharp LCD, win 7 senses this 3rd screen, and the screen do that black screen then back on again w/ the music charm note.

This was not the way it used to be, in the past yr., w/ this same set up, win 7 only went to the black screen and back on when I switch to Input 1, which is PC at 1920x1080.

And I don't know if the above is related to the boot up lock up or not.

 

[usasma]

Black screen issues are most often related to corrupted or outdated drivers. It's no longer just the video drivers that are a problem - it can be the storage drivers, the chipset drivers, or even more drivers.

The most likely fix is to update all drivers - but even then it may not fix things for you. I'd suggest trying a monitor driver for the Sharp TV - but have no idea if any are available.

Make sure that you have a System Restore point set (and a bootable System Repair disc) to use if the black screen can't be gotten around using other methods.

FYI - at work (a PC shop) we don't bother to fix black screen problems. We try System Restore. If it doesn't work, we backup the data, wipe the hard drive with DBAN, and then reinstall Windows. In the past we could spend 2 weeks working on a system and still not fix the black screen.

 

[Happy Hopping]

Thanks. Since I'm trying to avoid spending a lot of time to rebuild a sys., I would try to update those other drivers first. So you don't see this as a video card IRQ problem then?

 

[usasma]

Unfortunately the only surefire test for a bad video card is to try another video card.
The tests that we use will help ID problems - but they don't ID all problems with a card.

Most people only use the default monitor drivers included in Windows - so you won't usually see monitor issues because of that. But as this is an unusual problem, we do have to consider those also. My concern is that the Windows monitor drivers may not use the functions that the monitor is trying to request - leading to a black screen issue (this is hypothetical, so we're really just guessing here).

Good luck!

 

[Happy Hopping]

Downloads | Drivers | Manuals | SHARP Customer Support Electronics

I just went to Sharp, as my 3rd screen, it seems there is no driver to download. Win 7 do see my 3rd screen as Sharp

 

[Happy Hopping]

Update

while I am cleaning up unnecessary start up prog. at my msconfig, I notice this

Nvidia Display Driver Service

on my Services tab, so I do a search on it, and I found:

NVIDIA Display Driver Service - Nvidia - Graphic-Displays

I don't think it's causing any issues for me, other than an annoying
blank screen for a few seconds whenever I boot and it starts nvcpl.

it seems this program is caused as per what the other person in that link said