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From: Hans Petter Selasky <hselasky@c2i.net>
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Subject: Re: usb resume regression (sort of)
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On Monday 06 February 2012 22:59:27 Bengt Ahlgren wrote:
> I tried out 8.2-STABLE (from Feb 3rd) on my IBM Thinkpad X40 to see
> whether the updates to usb fixed the resume stall problem with
> 8.2-RELEASE.  (The latter with the "gavin-usb-controller-patch" however
> worked very well on this system!)
> 
> Unfortunately, 8.2-STABLE didn't improve.  On the contrary, no usb
> devices at all work after resume, so this is kind of a regression.  I
> tested with a couple of different versions of the usb system and
> concluded that it is commit r229370 that makes the difference.
> 
> After resume, the console says:
> 
> uhub1: at usbus1, port 1, addr 1 (disconnected)
> uhub2: at usbus2, port 1, addr 1 (disconnected)
> uhub3: at usbus3, port 1, addr 1 (disconnected)
> uhub0: at usbus0, port 1, addr 1 (disconnected)
> 
> What can I do to debug this further?  It would be great to be able to
> sort this for 8.3.
> 

Hi,

Make sure you remove any other rc.d scripts which kldload/kldunload 
ehci/ohci/uhci/... at suspend/resume.

Send complete dmesg showing a suspend/resume cycle.

Send output from usbconfig before and after suspend/resume.

Thank you.

--HPS