Updated acpi_cpu patch

Nate Lawson nate at root.org
Tue Nov 18 14:29:44 PST 2003

On Tue, 18 Nov 2003, Don Lewis wrote:
> On 18 Nov, Lukas Ertl wrote:
> > On Tue, 18 Nov 2003, Nate Lawson wrote:
> >> This excerpt from truckman@'s asl shows that 4 Cx states are only
> >> available when the AC adapter is not attached.  (The C*NA memory addresses
> >> appear to be managed by the BIOS and not the AML but the PSR access is
> >> clear).
> >
> > This part of the ASL looks the one here - let me guess, is it a ThinkPad?
> > :-)
> Yup, a Thinkpad R40, which refuses to actually power down in ACPI mode
> when I run "shutdown -p".

That's an old problem that Linux is also trying to work around.  It
appears to be buggy hw.


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