LIFEBOOK E780 Brightness problem

[Haired]

Hello.

I can't change screen brightness on my laptop. Nor with keyboard (i see green OSD but it doesn't move), nor via screen properties. In fact - there is no option in screen properties for brightness settings at all.
I updated all the system drivers via DeskUpdate - nothing has changed.

My setup:
System name: LIFEBOOK E780 (Intel Gfx)
BIOS version: Version 1.20
Operating system: Microsoft Windows 7 Corp x64

Please help.

[Caretaker]

Do you have used the combination Fn+F6 / Fn+F7 to change the brightness?
And thre is only the green onscreen menü but it is not moving?

What happens if you press e.g. Fn+F3 for muting the audio, is it muted after that?

I would recommend to uninstall the following applications and reinstall them again.

Fujitsu Display Manager
Fujitsu Hotkey Utillty
Fujitsu Power Saving Utility
Fujitsu System Extension Utility

[Haired]

Do you have used the combination Fn+F6 / Fn+F7 to change the brightness?
And thre is only the green onscreen menü but it is not moving?

Yep.

What happens if you press e.g. Fn+F3 for muting the audio, is it muted after that?

It is. All other "Fn" keys working just fine.

I would recommend to uninstall the following applications and reinstall them again.

Fujitsu Display Manager
Fujitsu Hotkey Utillty
Fujitsu Power Saving Utility
Fujitsu System Extension Utility

Tried. Doesn't help.
I also tried installing FTS-recommended video driver and last available Intel driver. Same story.

[benziner]

First try the Fujitsu System Extension Utility than the other Drivers.

[Haired]

First try the Fujitsu System Extension Utility than the other Drivers.

Tried. Many times. Doesn't help.