linux-kernel - Re: ACPI quirks - acpi_osi="!Windows 2006" required on FSC Amilo notebooks to enable brightness keys

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Message-ID: <20100109220606.GA19441@srcf.ucam.org>
Date:	Sat, 9 Jan 2010 22:06:06 +0000
From:	Matthew Garrett <mjg59@...f.ucam.org>
To:	Peter Paul <abnominales@....de>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: ACPI quirks - acpi_osi="!Windows 2006" required on FSC Amilo
	notebooks to enable brightness keys

On Sat, Jan 09, 2010 at 10:48:21PM +0100, Peter Paul wrote:

> /proc/interrupts does change all the time
> The only backlight related interrupt seems to be IO-APIC-fasteoi (9) - I
> get 5-7 interrupts there when pressing either Fn+F8 (brightness down) or
> Fn+F7 (brightness up), but only when brightness has not reached a
> maximim level in the direction I want to go.

Ok, so there's an ACPI event generated when you hit the keys. Can you 
please run the acpidump command as root and send me the output?

-- 
Matthew Garrett | mjg59@...f.ucam.org
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