On Fri, 23 Jul 2010 23:53:50 -0600 (MDT)
Jordan Hargrave <jordan@cvs.openbsd.org> wrote:

quoted text
> Redux: this new version will apply with -current
> 
> This patch will allow acpiec to initialize earlier if a ECDT table is
> found.  This fixes a lockup if booting on some Thinkpads while docked.
>  
> You can tell if your system supports ECDT by scanning the ACPI tables
> line in dmesg.  There should be a line like this:
> acpi0: tables DSDT FACP SSDT ECDT TCPA APIC MCFG HPET SLIC BOOT ASF!
> acpi0: SSDT SSDT SSDT SSDT
>  
> ECDT will be one of the entries if the early initialization is
> supported. 
> If scanning dmesg, acpiec0 will now also initialize earlier (near
> acpitimer and acpimadt) instead of after acpiprt. 

Thinkpad X200, amd64.mp,
bios0: vendor LENOVO version "6DET61WW (3.11 )" date 11/10/2009
bios0: LENOVO 74542GU

No docking station.
Nothing changed.

acpi0: tables DSDT FACP SSDT ECDT APIC MCFG HPET SLIC BOOT ASF! SSDT TCPA SSDT SSDT SSDT

acpihpet0 at acpi0: 14318179 Hz
acpiprt0 at acpi0: bus 0 (PCI0)
acpiprt1 at acpi0: bus -1 (AGP_)
acpiprt2 at acpi0: bus 2 (EXP0)
acpiprt3 at acpi0: bus 3 (EXP1)
acpiprt4 at acpi0: bus -1 (EXP2)
acpiprt5 at acpi0: bus 5 (EXP3)
acpiec0 at acpi0