AH550 Brightness Controls not working

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Jakobud
Posts: 3
Joined: Sat Oct 27, 2012 7:26
Product(s): Lifebook AH550

AH550 Brightness Controls not working

Postby Jakobud » Sat Oct 27, 2012 22:38

My friend has a Lifebook AH550 running Windows 7 Home 64 bit. I recently cleaned up her computer, removing a bunch of spy ware and bloat that had gotten installed over time.

Later I noticed that the Brightness Controls on the keyboard were no longer working. When you Press Fn + F6/F7, the brightness settings would be displayed on the screen but the green bar would not go up or down and the brightness of the screen didn't change at all. I found the Lifebook AH550 software page (http://support.fujitsupc.com/CS/Portal/supportsearch.do) and reinstalled several items including the Hotkey utility and the Intel Video Driver (the lifebook uses an Intel integrated video card, not the ATI/AMD card).

Does anyone have any recommendations on how to fix this problem? Is there a certain driver that I need to absolutely make sure I install to fix this problem?

FYI I also have installed ALL Windows 7 updates.

Jakobud
Posts: 3
Joined: Sat Oct 27, 2012 7:26
Product(s): Lifebook AH550

Re: AH550 Brightness Controls not working

Postby Jakobud » Tue Dec 18, 2012 18:59

Can anyone offer any advice on this? Surely there is just some Fujitsu software I need to install to make this work properly?

benziner
Posts: 806
Joined: Wed Apr 04, 2007 18:50
Product(s): S6420-W7x64, (S710-W7x64), S760-W7x64, S7110-W8.1x64, S7210-W7x64, E8020-W7x32, E8310-W7x64, (E8410-W7x64), (P770-W7x64+x32 virtuell, am 05.12.11 gestohlen!) Bis auf 2 Lifebooks habe ich alle anderen auf Windows 10 upgegradet.

Re: AH550 Brightness Controls not working

Postby benziner » Tue Dec 18, 2012 19:49

Did you install the Fujitsu System Extension Utility?
BG
benziner

Jakobud
Posts: 3
Joined: Sat Oct 27, 2012 7:26
Product(s): Lifebook AH550

Re: AH550 Brightness Controls not working

Postby Jakobud » Fri Jan 11, 2013 19:25

I'm not sure if that is installed or not. I will check next time I am on the laptop. What does that software do exactly?

Doldy
Posts: 1
Joined: Wed Dec 12, 2018 13:34
Product(s): Lifebook AH532

Re: AH550 Brightness Controls not working

Postby Doldy » Wed Dec 12, 2018 14:39

Hi there,
my laptop is Lifebook AH532 with Windows 7 / 64bit. I have issues with adjustment of brightness after an update of some Battery Charging Control Update via BIOS a few days ago (most probably this: http://www.fujitsu.com/global/about/res ... 31-01.html was the cause because it started after this update as far as I remember correctly...). The brightness is either completely dimmed or fully bright, I noticed that after a try of reinstallation the graphic driver it´s dimmed, but after a restart (e.g. turning on the laptop next day) it goes fully bright. Even restoration of the system to a certain state before the date of this update didn´t help. It doesn´t work via control panel nor via hotkeys with "Fn" button.

Any idea how to make it function?

Thanks

EDIT (20/12/2018): It seems that BIOS version 1.10 caused the issue. After installing version 1.08 brightness adjustment works again.

sugetsu
Posts: 5
Joined: Sat Nov 24, 2018 17:08
Product(s): Lifebook, fujitsu laptop

Re: AH550 Brightness Controls not working

Postby sugetsu » Sat Jan 05, 2019 14:58

Doldy wrote:Hi there,
my laptop is Lifebook AH532 with Windows 7 / 64bit. I have issues with adjustment of brightness after an update of some Battery Charging Control Update via BIOS a few days ago (most probably this: http://www.fujitsu.com/global/about/res ... 31-01.html was the cause because it started after this update as far as I remember correctly...). The brightness is either completely dimmed or fully bright, I noticed that after a try of reinstallation the graphic driver it´s dimmed, but after a restart (e.g. turning on the laptop next day) it goes fully bright. Even restoration of the system to a certain state before the date of this update didn´t help. It doesn´t work via control panel nor via hotkeys with "Fn" button.

Any idea how to make it function?

Thanks

EDIT (20/12/2018): It seems that BIOS version 1.10 caused the issue. After installing version 1.08 brightness adjustment works again.


Thanks I'm fixing a similar model, I thought updating to v1.10 will be an improve but it didn't.


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