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Satellite L855 PSKACE - Screen brightness cannot be changed
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Permlink Replies: 14 - Pages: 1 - Last Post: 25-Aug-2012 11:30 Last Post By: einser32
einser32

Posts: 12
Registered: 23/07/12
Satellite L855 PSKACE - Screen brightness cannot be changed
Posted: 23-Jul-2012 16:29 		 
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I have anew installed Win 7, have postinstalled all drivers of Toshiba.
Screen brightness cannot be put, neither about the FN keys nor about Windows menu. Thanks for your help!

Message was edited by: einser32
Tinderbox UK

Posts: 38
Registered: 04/07/12
Re: Satellite L855 PSKACE - Screen brightness cannot be changed
Posted: 23-Jul-2012 20:00   in response to: einser32 in response to: einser32 		 
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Have you tried re-installing the value added package.

You have to be using the stock toshiba display drivers, the brightness control will not work with normal amd drivers.

http://support1.toshiba-tro.de/tedd-files2/0/vap-20120514105204.zip

John.

Message was edited by: Tinderbox UK
Silas

Posts: 2,128
Registered: 10/02/05
Re: Satellite L855 PSKACE - Screen brightness cannot be changed
Posted: 23-Jul-2012 22:08   in response to: einser32 in response to: einser32 		 
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According notebook specification your L855 was delivered with WIN7 64BIT HOME PREMIUM so I don’t understand what have you done exactly. why to install other OS version?
Anyway I just hope you have created recovery DVD before you have deleted original preinstalled OS.

Have you installed right display driver? Check it please in device manager?
einser32

Posts: 12
Registered: 23/07/12
Re: Satellite L855 PSKACE - Screen brightness cannot be changed
Posted: 24-Jul-2012 13:25   in response to: Silas in response to: Silas 		 
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Quite simply because I use now a hard disk SSD and have anew installed, so, Win7. I have downloaded all drivers of the Toshiba homepage. Nevertheless, there does not function the brightness.Topical driver is installed! einser

Message was edited by: einser32
Silas

Posts: 2,128
Registered: 10/02/05
Re: Satellite L855 PSKACE - Screen brightness cannot be changed
Posted: 26-Jul-2012 08:16   in response to: einser32 in response to: einser32 		 
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... nor about Windows menu
With other words you cannot change brightness level using “Adjust plan brightness” in every available power plan, right?
Is now brightness set to maximum level?
einser32

Posts: 12
Registered: 23/07/12
Re: Satellite L855 PSKACE - Screen brightness cannot be changed
Posted: 26-Jul-2012 10:30   in response to: Silas in response to: Silas 		 
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Yes, that is at maximum brightness. There is no regulation possible. All necessary installed sinf driving!

einser
einser32

Posts: 12
Registered: 23/07/12
Re: Satellite L855 PSKACE - Screen brightness cannot be changed
Posted: 18-Aug-2012 08:37   in response to: einser32 in response to: einser32 		 
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Hello, the problem still exists. Can someone help!
PauPau

Posts: 4,320
Registered: 21/09/09
Re: Satellite L855 PSKACE - Screen brightness cannot be changed
Posted: 20-Aug-2012 15:02   in response to: einser32 in response to: einser32 		 
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For Satellite L850 the Fn +F2 and Fn+F3 key combination changes the screen brightness.
But I read also that the brightness would not work if you would use non Toshiba display driver. So be sure you have installed the display driver from Toshiba page!
cjo

Posts: 2
Registered: 21/08/12
Re: Satellite L855 PSKACE - Screen brightness cannot be changed
Posted: 21-Aug-2012 19:16   in response to: einser32 in response to: einser32 		 
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Hi,
i got the same Problem. All Drivers are installed, I´ve downloaded almost anything from the support center....also the tool tempro , it can´t find any problem.

You build such a nice Notebook, if you fix this Problem it will be perfect!

I ask myself, do i have to use Microsoft Home Premium to set my display brightness on a lower level?

sincerely
cjo
MisterX

Posts: 2,622
Registered: 21/09/09
Re: Satellite L855 PSKACE - Screen brightness cannot be changed
Posted: 22-Aug-2012 13:56   in response to: cjo in response to: cjo 		 
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Hi cjo

I’m asking myself if you have modified the preinstalled system or changed the Toshiba preconfigured Windows OS?
I read here in the forum about people having the same issue but they installed own Windows system… this might be a problem.

Did the Fn buttons (display brightness) work using Toshiba configured system?
cjo

Posts: 2
Registered: 21/08/12
Re: Satellite L855 PSKACE - Screen brightness cannot be changed
Posted: 23-Aug-2012 21:58   in response to: MisterX in response to: MisterX 		 
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thanks for reply

Yes i installed my own windows 7 64-bit ultimate and the display bightness control worked with the Toshiba configured system. The brightness control in my windows version ( windows key+x) also didn´t work. So there is maybe a Problem with the CPU-integrated Graphis-Chip "Processor Graphics Intel® HD Graphics 4000"

I noticed that there are two display driver on your support page:

29/06/12 Display Driver AMD Windows 7 - 64 Bit 8.932.5.3 World Wide
14/05/12 Display Driver Intel Windows 7 - 64 Bit 8.15.10.2639 World Wide

The AMD driver works,but i got an error by installing the intel and in my device manager is only the amd listed .

Just an idea i tried my best to solve the Issue . I did n ´t expect that changing the Toshiba configured system (win7-64bit -->win7-64bit) is an Problem.
MisterX

Posts: 2,622
Registered: 21/09/09
Re: Satellite L855 PSKACE - Screen brightness cannot be changed
Posted: 24-Aug-2012 08:49   in response to: cjo in response to: cjo 		 
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Yes i installed my own windows 7 64-bit ultimate and the display bightness control worked with the Toshiba configured system.

I thought as much!
The Intel display driver is for the internet GPU… so possibly you need this driver too to get the display brightness working again.

However, you should install the Intel tools in this order
  • Intel Chipset SW Installation Utility 9.3.0.1020
  • Intel Management Engine Interface 8.0.1.1399
  • Intel Display Driver
einser32

Posts: 12
Registered: 23/07/12
Re: Satellite L855 PSKACE - Screen brightness cannot be changed
Posted: 25-Aug-2012 08:02   in response to: MisterX in response to: MisterX 		 
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Hello, there are all of the drivers installed. Still does not work. The entire quality of the notebook is very, very bad. einser32
Silas

Posts: 2,128
Registered: 10/02/05
Re: Satellite L855 PSKACE - Screen brightness cannot be changed
Posted: 25-Aug-2012 09:57   in response to: einser32 in response to: einser32 		 
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The entire quality of the notebook is very, very bad.
I don’t know how you can say that. Fact is that you got your notebook with preinstalled WIN7 64BIT HOME PREMIUM and I’m 100% sure everything worked OK.

It is always problematic to install own OS and have 100% functionality as original preinstalled OS.
Anyway, I’m really wondering why you cannot get it work. Most important thing is right install order.
I don’t know how have you installed it but compare it please with this list:

Windows 7 64bit Win7 Sp1
PatchFiles V1.1 KB981287
Intel Chipset SW Installation Utility 9.3.0.1020
Intel Management Engine Interface 8.0.1.1399
Intel Display Driver 8.15.10.2639
and/or
AMD Display Driver 8.932.5.3-120120a-132503C-Toshiba
Intel Rapid Storage Technology Driver 11.0.0.1032
Realtek Audio Driver 6.0.1.6559
ATI HDMI Audio Driver 7.12.0.7705
Synaptics Touch Pad Driver 15.3.39.0
Atheros LAN Driver 2.0.12.13
SRS Premium Sound HD 1.12.0300
Realtek Card Reader 6.1.7601.39013
Intel Wireless LAN Driver
or
Atheros Wireless LAN Driver 9.2.0.462.1.s3264_wCAT_wINF
Atheros Bluetooth Filter Driver Package v1.0.12
Realtek Bluetooth Filter Driver Package v2.3.9.0206.2012
Bluetooth Stack for Windows by Toshiba v9.00.00T
Bluetooth Monitor v4.08
Intel USB3.0 Driver 1.0.1.209
TOSHIBA Value Added Package 1.6.0021.640203
TOSHIBA Web Camera Application V2.0.3.33
PatchFiles PCIIDEREG-1.2
PatchFiles TosVolRegulator_1.1
einser32

Posts: 12
Registered: 23/07/12
Re: Satellite L855 PSKACE - Screen brightness cannot be changed
Posted: 25-Aug-2012 11:30   in response to: Silas in response to: Silas 		 
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Hello, once again the understand it all. In the notebook I have a new SSD hard drive installed and then all of the drivers downloaded from the Toshiba website! einser32
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