Black screen after restaring Windows 7 pro/ultimate

[panathinaikos]

Hello ,


I administer a small network of 10 workstations. I decided to upgrade OS to windows 7 professional.(Previous one was WINXP SP3). Installation of the Windows 7 image happened without problems.Except on thing; When system REBOOTS is logging off, shutting down,restarts, HP logo appears and then nothing else.I have black screen.
The weird is that if I shut down computer and power on again windows 7 starts up normally.

Why this happene only in restarting, I do not know.Any ideas will be appreciated.

All computers are the same type; HP dx6100 microtower. OS : Windows 7 pro( I have tried Windows ultimate with the same issue).


Thank you

 

[goombawaho]

If you have multiple monitors, scope out that aspect of things - outputting to a non-existent port/monitor. If not:

I would suspect a video issue ESPECIALLY if you can see the hard drive LED flashing AFTER the screen goes dark. That means the system continues to boot with no video. Have you looked to see if that's happening?

I would uninstall any video software and then delete the video card in the device manager and then reboot computer. Then restart it several times to see if the behavior has gone away. Download latest video driver/software and install it. Test again with restarts.

 

[BadBigBen]

are all the BIOS's up to date?

when you reboot, you are not initializing certain settings (or refreshing them) as it would happen when one does a cold boot...

PS: two threads where open with the same content, I've asked the staff to delete the other... FYI...

Ben
"If it works don't fix it! If it doesn't use a sledgehammer..."
How to ask a question, when posting them to a professional forum.
Only ask questions with yes/no answers if you want "yes" or "no"

 

[goombawaho]

BadBigBen - long time, no post.

 

[cdogg]

I've seen a similar issue on HP desktop PC's using a DisplayPort-to-VGA adapter. For a while, we were buying cheap adapters from SIIG and Startech. It turned out the adapter was the problem. When it was detached, the PC would restart just fine without a hitch. So then we tried updating the BIOS to get the adapters working and got mixed results - it helped some, but didn't have an effect on most. After switching to higher quality adapters straight from HP, the rest of the issues were resolved and we have yet to see any return.

If you're not using a DisplayPort adapter, then try detaching all other non-essential devices from your USB ports as a test.



-Carl
"The glass is neither half-full nor half-empty: it's twice as big as it needs to be."

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