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From: Andrew Rodland <arodland@noln.com>
To: linux-kernel@vger.kernel.org
Subject: Re: acpi + keyboard/mouse problems [was Re: acpi + synaptics trackpad in 2.5]
Date: Fri, 07 Feb 2003 10:57:30 -0500	[thread overview]
Message-ID: <b20ktt$4lb$1@main.gmane.org> (raw)
In-Reply-To: 20030205150331.GA8582@triplehelix.org

Joshua Kwan wrote:

> On Wed, Feb 05, 2003 at 12:33:02AM +0100, Pavel Machek wrote:
>> Hi!
>> 
>> > Whenever I run a ACPI battery monitor in X, my mouse goes completely
>> > insane - goes around everywhere, and clicks randomly. the second i
>> > close it, everything returns to normal.
>> 
>> What machine?
> 
> This is a Dell SmartStep 200N. I have no other working laptops using
> ACPI so I can't know for sure how big a problem this is :)

Alright...
I know that some Dells (although I can't say whether yours is one) do their
ACPI by calling back into Dell SMM calls -- which takes the processor away
from linux for a significant amount of time; enough to cause clock
slippage, and loss of mouse data. And I'm guessing an ACPI battery monitor
polls at a fairly short interval, so, it could be related.

Cheers
--hobbs



      reply	other threads:[~2003-02-07 15:53 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-02-03 21:02 acpi + synaptics trackpad in 2.5 Joshua Kwan
2003-02-04 23:33 ` acpi + keyboard/mouse problems [was Re: acpi + synaptics trackpad in 2.5] Pavel Machek
2003-02-05 15:03   ` Joshua Kwan
2003-02-07 15:57     ` Andrew Rodland [this message]

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