ACPI disables USB ports on Lenovo X200
    Damian Gerow 
    dgerow at afflictions.org
       
    Sun May 30 02:09:13 UTC 2010
    
    
  
Additional note: completely forgot to include a uname -a:
FreeBSD plebeian.afflictions.org 8.1-PRERELEASE FreeBSD 8.1-PRERELEASE #10 r208630: Sat May 29 14:36:32 EDT 2010 root at plebeian.afflictions.org:/usr/obj/usr/src/sys/PLEBEIAN  amd64
Garrett Cooper wrote:
: > The laptop is a Lenovo X200, 7454-CTO, running BIOS 3.16. ?Which, um, is
: > more recent than the latest release from Lenovo, but was current as of about
: > six months ago.
: 
: Hi Damian,
:     Have you also tried setting hw.usb.debug=1 and see what's reported
: by the new USB stack?
Yup.  I couldn't remember if hw.usb.debug was a blanket statement for
hw.usb*debug, so I also set hw.usb.ehci.debug, hw.usb.ohci.debug,
hw.usb.dev.debug, and hw.usb.ums.debug to 1.
Here's what happens when I plug in that mouse:
-----
ehci_set_hw_power:
uhub_reattach_port: reattaching port 2
uhub_reattach_port: Port 2 is in Host Mode
ehci_disown: index=2 lowspeed=1
usbd_transfer_power_ref: Adding type 2 to power state
usbd_transfer_power_ref: needs power
ehci_set_hw_power:
ehci_set_hw_power: Async is active
usb_needs_explore:
usb_bus_powerd: bus=0xffffff8000373c90
ehci_set_hw_power:
ehci_set_hw_power: Async is active
-----
Should I be sending this over to stable@ instead?
    
    
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