Date: Fri, 23 Mar 2001 15:00:59 +1100 (EST)
Message-Id: <200103230400.f2N40xk15331@pcug.org.au>
From: sfr@canb.auug.org.au
To: alan@lxorguk.ukuu.org.uk, twoller@crystal.cirrus.com
Cc: linux-kernel@vger.kernel.org
Subject: Re: Incorrect mdelay() results on Power Managed Machines x86
Sender: linux-kernel-owner@vger.kernel.org

> Boot with the 'notsc' option is one approach. We certainly could recalibrate
> the clock if we could get events out of ACPI, APM or some other source. Maybe
> someone at IBM knows something on the thinkpad front here. If there is for
> example an additional apm event or irq we can enable for the thinkpads to see
> the speed change we can make it work

On the ThinkPad 600E (at least), we get a Power Status Change APM event.

Cheers,
Stephen Rothwell

P.S. We actually get two of these events each time we remove or insert the
power cord ...
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