Problem of brightness on Satellite A300 - 25K

I have a Satellite A300 - 25K and after using a projector, I can't put my brightness for my screen more.

The parameter just disappeared and shortcut keys don't work. All the other keys make it job.
Help, please.

Hi John

It works when you restart flash cards?
Start > all programs > Toshiba > utilities

You can change brightness level using the option in certain power plan?

Tags: Toshiba

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