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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