Re: acpi on r40e

["Praveen C" <cpravn-/E1597aS9LQAvxtiuMwx3w@public.gmane.org>]

I removed all HKEY related stuff and assembled dsdt.dsl using iasl.
Then I used the DSDT initrd patch together with the new DSDT table. I
STILL cant get the volume and brightness buttons to work.
praveen

 --- Len Brown <len.brown-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org> wrote: > On Sat, 2004-02-07 at
11:20, Praveen C wrote:
> 
> > Another problem with acpi which I forgot to mention is that it
> makes
> > the special buttons for volume and brightness control ineffective.
> If I
> > boot the same kernel with acpi=off those buttons work fine.
> 
> Interesting.
> If you boot, say with "acpi=off", your volume and brightness buttons
> work, but if you boot with ACPI enabled they have no effect?
> 
> you DSDT has an IBM defined device:
> 
>                     Device (HKEY)
>                     {
>                         Name (_HID, EisaId ("IBM0068"))
> 
> which sure sounds like it might be a hot-key device;-)
> However, not immediately clear to me how ACPI w/o vendor-specific
> extensions would talk to it.  Even more unclear is how and why these
> buttons work when ACPI is disabled, and how ACPI interferes with
> their
> proper operation when it is enabled.
> 
> -Len

=====
Praveen C
http://www.cpraveen.tk/

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