From: Nate Lawson <nate-Y6VGUYTwhu0@public.gmane.org>
To: Fedor Karpelevitch <fedor-ugkMPi23kyXAHCkTjeiZhQ@public.gmane.org>
Cc: acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
Subject: Re: double power button events on presario 900 - apparently a timing issue?
Date: Wed, 24 Sep 2003 11:11:37 -0700 (PDT) [thread overview]
Message-ID: <20030924111121.F53806@root.org> (raw)
In-Reply-To: <200309240723.28526.fedor-ugkMPi23kyXAHCkTjeiZhQ@public.gmane.org>
On Wed, 24 Sep 2003, Fedor Karpelevitch wrote:
> as I previously mentioned I am seeing an annoying problem on my
> presario 900 - when power button (works as FF here) is pressed it
> generates two events every time. I was experimentin with debugging
> output and noticed an interesting thing - if I do
> echo 0xffffffff > /proc/acpi/debug_level
> to get verbose debug output the problem goes away - I only get one
> event every time button is pressed. Looks like the problem is caused
> by some kind timing issue which goes away when debugging slows it
> down. Does this sound like a reasonable guess? Would anyone suggest
> how this can be debugged further?
It means you need to debounce the event.
-Nate
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next prev parent reply other threads:[~2003-09-24 18:11 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-09-24 14:23 double power button events on presario 900 - apparently a timing issue? Fedor Karpelevitch
[not found] ` <200309240723.28526.fedor-ugkMPi23kyXAHCkTjeiZhQ@public.gmane.org>
2003-09-24 18:11 ` Nate Lawson [this message]
[not found] ` <20030924111121.F53806-Y6VGUYTwhu0@public.gmane.org>
2003-09-24 23:21 ` Fedor Karpelevitch
[not found] ` <200309241621.11993.fedor-ugkMPi23kyXAHCkTjeiZhQ@public.gmane.org>
2003-09-25 15:59 ` Fedor Karpelevitch
[not found] ` <200309250859.46970.fedor-ugkMPi23kyXAHCkTjeiZhQ@public.gmane.org>
2003-09-25 16:37 ` Nate Lawson
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