win 7 problem...

[ananth2ananth]

I am using win 7 professional edition.(Original).using Dell Inspiron 1564 Laptop
From the past few days the monitor automatically increases contrast and brightness.
When it occurs my monitor wont be clearly visible , i don't know how to set the brightness and contrast to default values.
And moreover i don't know whether it is problem with OS or with the hardware.

Help!!!

 

[Livewire]

Far as I know, Hardware. Check Dell's website for fixes; a friend of mine had a similar issue on his Dell laptop 2 or 3 years ago - they ended up returning the laptop to Bestbuy and getting a different model because Dell told him it might be a month before they got the fix published (it was in the works but not done yet).

Hopefully yours already has the fix out though.

 

[Smith6612]

Follow what Livewire suggested and also see if Dell has any updated drivers on their website. I have a Dell Inspiron 1545 with Windows 7 and I know that once in a blue moon I'll see the laptop running at minimum brightness as if I were on battery (I run max brightness on AC, min brightness on battery). It's a simple software glitch but it doesn't annoy me. Plus, the screen is WLED backlit so it isn't the warm up of the screen.