Satellite A210 - display becomes darker after 5 minutes

My satellite is fairly new, I bought 2 months ago. I already wrote toshiba an e-mail, but I have yet to answer.
When I start my laptop, the light is very bright, everything right. But after 5 minutes, it turns into a darker shade. Not very dark, but a slight layer of gray. He did it now for 2 weeks or more.

I looked for the brightness of the display settings, but they are up. What I'm asking is that the controller is at the maximum, but he says it's only 70 (instead of 100 which I guess would be the real maximum).

Also with the FN keys does not, because it's also the highest level of brightness. I don't know what to do next. Maybe a driver is needed or do you not think that the screen is broken?

I hope you all understand me.

Thank you

Can you please you start Notepad and enter the BIOS settings? Leave 5 minutes running and tell us if the screen is darker as when you use the operating system.

Tags: Toshiba

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