[Intel-gfx] New Samsung driver for backlight control.

Greg KH greg at kroah.com
Wed Aug 26 18:36:33 CEST 2009


On Sat, Aug 22, 2009 at 10:27:58AM +0100, Mike Lothian wrote:
> I can confirm that it works however it does have different behaviour
> 
> At the lowest setting the backlight is still on and the screen even
> though dull is still readable with the previous patch the screen was
> black
> 
> This is what it says in my dmesg:
> 
> This computer supports SABI==f494d
> SABI header:
>  SMI Port Number = 0x00b2
>  SMI Interface Function = 0xc0
>  SMI enable memory buffer = 0xc1
>  SMI restore memory buffer = 0xc2
>  SABI data offset = 0x0f00
>  SABI data segment = 0xdf01
>  BIOS interface version = 0x32
>  KBD Launcher string = 0x53
> SABI Interface = ffff8800000dff10
> Model Name R510
> backlight = 0x01
> wireless button = 0x01
> brightness = 0x08
> etiquette mode = 0x00
> cpu temp = 0x45

Thanks.

Can you provide me the output of:
	grep . /sys/class/dmi/id/*

So I can add this laptop to the driver?

> Do you have any idea why my brightness buttons aren't working correctly?

See the other responses, they are working "correctly" now, a 0 setting
will not turn off the light, as it is not supposed to.

thanks,

greg k-h



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