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Presario 1800T Laptop Video Question

Last response: in Laptops & Notebooks
a b D Laptop
a b ) Power supply
June 12, 2005 12:55:10 PM

Archived from groups: comp.sys.laptops (More info?)

Can an external laptop power supply go bad in a way that would mess up
the laptop video during booting?

My 1800T laptop recetnly started showing signs of a problem.
About 2 weeks ago, on boot, (with the external power supply), I would
get 3 beeps. But no sign of a problem.

Was the three beeps a warning (video)? THe screen would be black, but
on reboot, it started normally.

The next week, on boot (with power supply), after showing the Compaq
logo, and with Windows starting, the display would go fuzzy in a pixel
manner. Upon reboot, the display would also go white in a gradational

However, when I switch power supplies, the problem seems to go away.
It's only during the boot that the video problem occurs, and if I
reboot a couple of times, it runs like a champ. But only if I'm on
battery or using my alternat power supply.

Is it possble that the power supply was causing the video issues, or am
I just trying to keep from admitting that my machine is starting the
long slow decline?

a b D Laptop
a b ) Power supply
June 12, 2005 2:02:28 PM

Archived from groups: comp.sys.laptops (More info?)

I hae the following entry in my System Event View

The Driver atidvai for the display device \Device\Video0 got stuck in
an infinite loop. Indicates a problem with the device itself or the

I guess I can rule out the power supply.