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JameZ
Posts: 3,110
Registered: ‎07-11-2010
Location: Malaysia
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E420s / E420 / E520 - Unable to change brightness after upgrading video driver to 8.840.7.3000

Hello All,

 

I undestand some of you are reporting that after ugprading the video driver the adjustment brightness keys are not working properly for the E420s / E420 / E520.

 

Appreciate if you could let me know here. Also please try uninstalling, power manager, power management driver and hotkeys, reboot then install them back.

 

If problem persist, just post here or hit the "Me Too" button.

 

//JameZ

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W520 | 4176-38U | i7 - 2720QM | Quardo 1000M | 8GB RAM | 60GB OCZ Agility 3

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windv
Posts: 25
Registered: ‎03-31-2009
Location: България, Bulgaria
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Re: E420s / E420 / E520 - Unable to change brightness after upgrading video driver to 8.840.7.3000

[ Edited ]

I am sorry for the lame question, but where exactly do i find the hotkey patch to uninstall it.

Thanks.

 
Edit:

What i uninstalled, was the Interface driver?! I think that is what controlls the hotkeys or am i wrong.
 

 

2 Edit:

Uninstalled every thing, installed again. Screen brightness can still NOT be adjusted with the F7 & F8 keys.
Only from the Power Options in Control Panel.

 

 

t400s-w520-e420-t43p
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BJK1903
Posts: 18
Registered: ‎09-17-2011
Location: Melbourne, Australia
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Re: E420s / E420 / E520 - Unable to change brightness after upgrading video driver to 8.840.7.3000

Hi Jamez

 

Is there going to be an updated driver to address this problem?

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paralityk
Posts: 98
Registered: ‎06-17-2011
Location: Poland
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Re: E420s / E420 / E520 - Unable to change brightness after upgrading video driver to 8.840.7.3000

Bump, didn't help, problem is still there.

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Irim
Posts: 5
Registered: ‎10-21-2011
Location: England
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Re: E420s / E420 / E520 - Unable to change brightness after upgrading video driver to 8.840.7.3000

[ Edited ]

I experience the same issue as well.

 

If you release an updated driver, is it possible to incorporate the current ATI driver version?

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zerow3
Posts: 14
Registered: ‎12-12-2008
Location: Australia
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Re: E420s / E420 / E520 - Unable to change brightness after upgrading video driver to 8.840.7.3000

I got the same problem as well. My machine is E420 (1141)

Retired Employee
JameZ
Posts: 3,110
Registered: ‎07-11-2010
Location: Malaysia
0

Re: E420s / E420 / E520 - Unable to change brightness after upgrading video driver to 8.840.7.3000

@All,

Appreciate if someone could drop me a private message with the following info needed to log a case to engineering on this.

Name:
Mobile:
Email:
MTM:
S/N:
BIOS:
Win 7:
x64 / x86:
Hotkey package:
Video driver:

//JameZ

Check out the Community Knowledge Base for hints and tips.


Did someone help you today? Press the star on the left to thank them with a Kudo!

If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"!




W520 | 4176-38U | i7 - 2720QM | Quardo 1000M | 8GB RAM | 60GB OCZ Agility 3

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Gregi
Posts: 27
Registered: ‎11-22-2011
Location: Poland
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Re: E420s / E420 / E520 - Unable to change brightness after upgrading video driver to 8.840.7.3000

[ Edited ]

Hello

Will there be any solution for this ? The problem exists, when system uses Radeon graphics only.

 

Retired Employee
JameZ
Posts: 3,110
Registered: ‎07-11-2010
Location: Malaysia
0

Re: E420s / E420 / E520 - Unable to change brightness after upgrading video driver to 8.840.7.3000

@Gregi,

There is a new BIOS released for the E520. Could you try it and see if it helps.

http://support.lenovo.com/en_US/downloads/detail.page?DocID=DS014906

//JameZ

Check out the Community Knowledge Base for hints and tips.


Did someone help you today? Press the star on the left to thank them with a Kudo!

If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"!




W520 | 4176-38U | i7 - 2720QM | Quardo 1000M | 8GB RAM | 60GB OCZ Agility 3

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Anno
Posts: 53
Registered: ‎09-01-2011
Location: Australia
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Re: E420s / E420 / E520 - Unable to change brightness after upgrading video driver to 8.840.7.3000

Nope, new BIOS does nothing.

But if I put brightess to maximum and press F8 (increase brightness) it shows me that brightness is full (15).

And same thing with minimum brighness pressing F7. (Not sure if that was there in the other BIOS)

I still can't change it though.