Boris wrote:
Boris wrote in
09.88:

I have a Dell E510 that has been running Windows 7 Ultimate fine for a
while. I put it on the shelf in October 2015, and brought it back out
last night. I forgot the password, so I used the Dell supplied OS
disk, went into repair, and used the sethc.exe method to reset the
password:

http://www.howtogeek.com/96630/how-t...otten-windows-
password-the-easy-way/

This worked, but now the monitor power light goes from green to orange
(power saving mode), the keyboard lights go out, and the mouse light
goes out. I can hear the power supply fan still going. Thinking it
may have been a problem with the discrete video card, I removed it and
set to use the onboard video. Same problem. The problem also exists
in all Safe Modes.

Funny, though, as long as I don't enter my new password, the thing
stays on. That is, it will sit there forever asking me to enter my
password, but as soon as I do, everything goes out either immediately
after hitting Enter, or a few seconds after the desktop comes up.
I've tried a different monitor, too, but same problem.

Any ideas?

TIA


I noticed thatthere was a (probably) monitor generated message that
flashed very, very quickly just before the monitor went black. I took a
video of it with my cell phone, and watched the particular two frames
that had the message:

"Cannot Display This Video Mode
Optimum Resolution 1200 x 1024 68mHz"

How in the world do I change this if I can't get into the desktop?

On an LCD monitor, the OSD is supposed to display
"Out of Range" when the resolution or refresh is wrong.
A typical "problem" is the Refresh getting set to 150Hz
by a corruption of some kind. The normal LCD refresh is
60Hz.

*******

Safe Mode gets you in (F8),
but I don't know what to do when you get there :-(

http://www.sevenforums.com/tutorials...safe-mode.html

The thing is, there are a couple different places
in the Registry where display resolutions are held,
and I don't have a good technical reference web page
to offer you on the topic.

Even if you uninstall a video driver, the resolution
info is not removed or corrected. So trying a video
driver won't help. But it's the only obvious
option to try.

Paul