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From: Alexei Gilchrist <alexei-JAjqph6Yjy/o0IyPN7li9Ydd74u8MsAO@public.gmane.org>
To: acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
Subject: getting BIOS to control screen
Date: Thu, 4 Dec 2003 12:42:30 +1000	[thread overview]
Message-ID: <20031204024230.GC955@physics.uq.edu.au> (raw)

Hi,

Under ACPI my laptops screen buttons don't work (ie switching to external screen
and setting the brightness). They DO work under APM though. This is a real pain
as I often need to switch to an external screen and I have to reboot to do this
at the moment.

blundering through the DSDT ASL I came across:


   Method (_DOS, 1, NotSerialized)
    {
       Store (And (Arg0, 0x03), Local0)
       \_SB.PSRV (0xB9, 0x20, 0x01, Local0, 0x00)
    }

If I also set bit1 to 1: And(And (Arg0, 0x03), 0x01)???? can I force it to use 
the BIOS ala APM? or have I lost the plot?

cheers,

Alexei



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                 reply	other threads:[~2003-12-04  2:42 UTC|newest]

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