Subject: kern/25927: ehci fails on laptop after sleep
To: None <gnats-bugs@gnats.NetBSD.org>
From: None <perry@piermont.com>
List: netbsd-bugs
Date: 06/14/2004 15:43:45
>Number:         25927
>Category:       kern
>Synopsis:       ehci fails on laptop after sleep
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Mon Jun 14 19:44:00 UTC 2004
>Closed-Date:
>Last-Modified:
>Originator:     Perry E. Metzger
>Release:        NetBSD 2.0E
>Organization:
Perry E. Metzger		perry@piermont.com
>Environment:
	
	
System: NetBSD hackworth 2.0E NetBSD 2.0E (HACKWORTH) #0: Sat May  8 22:31:25 EDT 2004 perry@hackworth.piermont.com:/usr/src/sys/arch/i386/compile/HACKWORTH i386
Architecture: i386
Machine: i386
>Description:
	On my IBM T41 laptop, if I sleep my box (i.e. zzz(8)), USB devices
inserted into the laptop's two ehci based USB ports are no longer recognized.

Relevant dmesg data:

$ dmesg | fgrep ehci
ehci0 at pci0 dev 29 function 7: Intel 82801DB/DBM USB EHCI Controller (rev. 0x01)
ehci0: interrupting at irq 11
ehci0: EHCI version 1.0
ehci0: companion controllers, 2 ports each: uhci0 uhci1 uhci2
usb3 at ehci0: USB revision 2.0


>How-To-Repeat:
	See above
>Fix:
	Dunno, but this smells like a missing powerhook.
>Release-Note:
>Audit-Trail:
>Unformatted: