On Dec 10, 4:29*am, jakdedert wrote:
Meat Plow wrote:
On Sun, 09 Dec 2007 07:34:31 +0000, James Sweet wrote:

wrote in message
....
Hi,
* * * *Please I have a Dell Inspirer laptop from a friend with
windows Vista *home Edition. The laptop works alright on battery but
when it is connected to the the mains the screen goes off. In fact the
screen goes off after it has finished booting. it is the back light
that goes off cos the desk top could be seen dimmely in the
background. Also when the mains is removed, the machine has to be
reseted b4 it will work normally. Please help Thanks
Check the easy stuff first, is it set to use an external monitor instead of
the internal panel?

To my knowledge of laptops (I own 3) if JUST the backlight is switching
off as the OP indicates, this is not a real function of a BIOS or O/S
setting. It may perhaps be yet another a bug in Vista since there are so
many.

My feeling as well. *I'd look for something physical having to do with
the power plug. *Perhaps it flexes a portion of the circuit board when
it's plugged in.

Easy to check, though. *Simply unplug from the mains, but leave the DC
plug in the back...maybe wiggle it. *If it doesn't work, I'm wrong.

That's not to say that the other posters are incorrect about BIOS, power
saver etc....

jak- Hide quoted text -

- Show quoted text -

I have the same problem, although not quite as bad yet. I have found
that if I wiggle my AC power cord where it plugs into the back of the
laptop, I can replicate the problem. I am going to try it to see if I
ge the same problem when it's not plugged into the mains. It's
definately a hardware issue, at least my problem is.