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Punch Card
Posts: 27
Registered: ‎11-22-2011
Location: Poland
0

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


JameZ wrote:
@Gregi,

Do you set it to dedicated GPU only in BIOS? Appreciate if you can explain how do I set it to dedicated GPU only as I do not have the newer generation of EDGE systems.

//JameZ

No, not only in BIOS, I do it by this option in Catalyst Drivers, manual setting to dedicated graphics. Because if I leave this choice to drivers (by app demand on graphics) it doesn't work well.

Regards

Lenovo Staff
Posts: 3,247
Registered: ‎07-11-2010
Location: Malaysia
0

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

Alright thanks~! Will let engineering know

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X240 | 8GB RAM | 512GB Samsung SSD

Punch Card
Posts: 18
Registered: ‎09-17-2011
Location: Melbourne, Australia
0

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

When are we going to have a solution to this problem?

 

Brightness can be adjusted through the Windows power manager, but not by the function keys..

Lenovo Staff
Posts: 3,247
Registered: ‎07-11-2010
Location: Malaysia
0

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

Problem replicated. Escalated to development.

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X240 | 8GB RAM | 512GB Samsung SSD

Punch Card
Posts: 53
Registered: ‎09-01-2011
Location: Australia
0

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

Anything happening?

Lenovo Staff
Posts: 3,247
Registered: ‎07-11-2010
Location: Malaysia
0

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

@Anno,

No updates from the team but the case is in "Working" status.

//JameZ

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X240 | 8GB RAM | 512GB Samsung SSD

Punch Card
Posts: 27
Registered: ‎11-22-2011
Location: Poland
0

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

@JameZ:  This issue ->Fan sometimes not working after switchable-graphic- issue-BIOS-Update

 

is much more important than this one.

What's DOS?
Posts: 2
Registered: ‎01-02-2012
Location: Ukraine
0

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

Hi,

 

Just solved this topic on my e420.

When you install video driver, it automatically installs Intel video management software. It will start to control screenbrightness instead of Windows tools. If you want your hotkeys started to work you need to install only Video adapter driverbut no software.

Punch Card
Posts: 18
Registered: ‎09-17-2011
Location: Melbourne, Australia
0

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

What driver did you install Spectator? Have you got a link?

 

 

Ctrl-Alt-Del
Posts: 5
Registered: ‎05-24-2011
Location: USA
0

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

Problem I'm having is that I can still control the brightness via the F7 and F8 buttons, but I no longer get the display interface on the screen.

 

Annoying because it's harder to quickly set it at a specific number.

 

(Happening with volume too.)