Brightness


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Hi,

I've got a little problem.

I installed Mandrake 9.2 on my laptop,

but the screen is VERY bright.

Is there something I can do about this??

(My eyes hurt when I look at it for a long time :cry: )

In case you need some extra info:

I'm running Mandrake 9.2

KDE Version: 3.1.3

Kernel: 2.4.22

Graphic card installed as Custom (VESA) card.

(I'm still searching linux drivers for my videocard.)

Monitor: Flat Panel 1024x768

Resolution: 1024x768 24bpp

My laptop is an Acer Aspire 1353LC.

Thanks in advance,

the Blue Squirle

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Hmmm... I thought that the key-combination was a BIOS-type function, and independant of the OS... :unsure: I must be wrong, if it worked in Windows, but isn't working now.

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The sound and brightness controls on my laptop are controlled by the BIOS and do not rely on the OS, but sometimes all the buttons do is tell Windows (and Windows alone) to do something.

Ensuring that the correct video adapter and monitor was selected is important. This can be done in the Mandrake Control Center under hardware. Maybe you have the wrong monitor or improperly configured graphical server?

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You could install KGamma. This will let you correct your brightness & gamma on the fly.

Or adjust your XF86Config-4 file:

Add a Gamma line to the bottom of your Monitor section & adjust the settings to your liking. You will have to exit & restart X to see the changes this way.

Example below

Section "Monitor"

DisplaySize 380 300

HorizSync 31-70

Identifier "Monitor[0]"

ModelName "1280X1024@75HZ"

Option "DPMS"

VendorName "--> VESA"

VertRefresh 50-75

UseModes "Modes[0]"

Gamma 1.00 1.00 1.00

EndSection

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Except that gamma corrections won't actually affect the fluorescent bulb... :(

It may be a last resort, though....

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I've tried KGamma

and changing the gamma rule in my XF86Config file manually

both have no effect. :wacko:

I think my monitor is installed correctly.

But I still can't find drivers for my videocard

(an S3 / VIA KM400-KN400)

I found the latest drivers from VIA at viaarena.com but I can't use them since they are made for Mandrake 9.1 and my 9.2 doesn't want to accept them (even when I change the installation files).

My function keys only work with Windows.

So that's another prob. :(

Is there anything else I can do?

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It sounds like the laptop manufacturer and Microsoft have coordinated a "software solution".

It saves the manufacturer money developing & testing...

And it makes the feature only work with Windows. :(

Similar story happened with modems becoming WinModems :no:

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