suspend/resume issues on ThinkPad T41 under 5.2.1-RELEASE

[Dan Langille]

I've got 5.2.1 running on my ThinkPad T41.  I have no settings in 
/etc/sysctl.conf.

/boot/loader.conf contains:
hw.pci.allow_unsupported_io_range="1"
hw.cbb.start_memory="0xc0210000"

The first is to get em0 running. The second is to avoid memory 
conflicts.

I'm trying ACPI.

$ sysctl hw.acpi.supported_sleep_state sysctl hw.acpi.s4bios
hw.acpi.supported_sleep_state: S3 S4 S5
hw.acpi.s4bios: 0

S4OS and and S5 both suspend, but I cannot resume (ie. opening the 
laptop doesn't power up the box, and I've tried various key pressing 
combinations, but nothing happens unless I press the power button).

"acpiconf -s 3" does suspend the box.  When resuming, I get this in 
/var/log/messages:

Jun 13 18:48:34 laptop sudo:      dan : TTY=ttyp1 ; PWD=/usr/home/dan 
; USER=root ; COMMAND=/usr/sbin/acpiconf -s S3
Jun 13 18:48:43 laptop kernel: pcib0: slot 29 INTA is routed to irq 
11
Jun 13 18:48:43 laptop kernel: pcib0: slot 29 INTB is routed to irq 
11
Jun 13 18:48:43 laptop kernel: pcib0: slot 29 INTC is routed to irq 
11
Jun 13 18:48:43 laptop kernel: pcib0: slot 29 INTD is routed to irq 
11
Jun 13 18:48:44 laptop kernel: pcib0: slot 31 INTB is routed to irq 
11
Jun 13 18:48:44 laptop last message repeated 2 times
Jun 13 18:48:44 laptop kernel: pcib1: slot 0 INTA is routed to irq 11
Jun 13 18:48:44 laptop kernel: usb0: cannot start
Jun 13 18:48:44 laptop kernel: usb1: cannot start
Jun 13 18:48:44 laptop kernel: usb2: cannot start
Jun 13 18:48:44 laptop kernel: pcib2: slot 0 INTA is routed to irq 11
Jun 13 18:48:44 laptop kernel: pcib2: slot 0 INTB is routed to irq 11
Jun 13 18:48:44 laptop kernel: pcib2: slot 1 INTA is routed to irq 11
Jun 13 18:48:44 laptop kernel: pcib2: slot 2 INTA is routed to irq 11
Jun 13 18:48:44 laptop kernel: wakeup from sleeping state (slept 
00:00:08)
Jun 13 18:48:44 laptop kernel: uhub0: illegal enable change, port 1
Jun 13 18:48:44 laptop kernel: uhub1: illegal enable change, port 1
Jun 13 18:48:44 laptop kernel: uhub2: illegal enable change, port 1
Jun 13 18:48:45 laptop kernel: uhub0: port 1 reset failed
Jun 13 18:48:45 laptop kernel: uhub0: illegal enable change, port 2
Jun 13 18:48:45 laptop kernel: uhub1: port 1 reset failed
Jun 13 18:48:45 laptop kernel: uhub1: illegal enable change, port 2
Jun 13 18:48:45 laptop kernel: uhub2: port 1 reset failed
Jun 13 18:48:45 laptop kernel: uhub2: illegal enable change, port 2
Jun 13 18:48:46 laptop kernel: uhub0: port 2 reset failed
Jun 13 18:48:46 laptop kernel: uhub0: illegal enable change, port 1
repeat....

Plus a blinking cursor top left corner.

Any ideas?  http://www.freebsd.org/cgi/query-pr.cgi?pr=59747 
indicates that this is a known problem.  Do I have options other than 
removing USB support from the kernel?

Ideas?  Comments?
-- 
Dan Langille : http://www.langille.org/
BSDCan - http://www.bsdcan.org/