Satellite L50 - B - 12 G - can't change the brightness of the display

Hi people,

For some reason that I can't find out, since yesterday I can not change the brightness on my deskop.
It's a Satelite L50 - B - 12 G with Windows 8.1, 64 bit.

(F2 and F3) function key does not move the scroll bar, and when I try the same thing on the control panel is like this:
It is not simply to change the brightness

At the same time, when I'm with an open office document or on a web page, don's work the cursor as usual... it is slower to move from one cell to another cell in Excel for example.
The sane is to arrive with the page down key.

Can anyone help on this? It becomes very annoying.

Best regards
Jose

How did you try to increase or decrease the brightness of the screen?
Did you press the FN key also?

Well, as you said the F2 and F3 keys increases or decreases the brightness of the display
The extra pressure of the FN button depends on the key mode feature which is located in:
Office Assist-> tools & utilities-> Control Panel-> keyboard

Permit special mode button allows you to use special features without pressing the FN key.

That's why I recommend that you check this setting!

Tags: Toshiba

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