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From: Andrew Rodland <arodland@noln.com>
Subject: Re: acpi + keyboard/mouse problems [was Re: acpi + synaptics trackpad in 2.5]
Date: Fri, 07 Feb 2003 10:57:30 -0500
Organization: Dis Organization
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References: <20030203210258.GA17499@triplehelix.org> <20030204233301.GF128@elf.ucw.cz> <20030205150331.GA8582@triplehelix.org>
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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


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