Date: Fri, 18 Dec 2009 07:50:02 GMT From: Mark Duller <mark.duller@oerc.ox.ac.uk> To: freebsd-usb@FreeBSD.org Subject: Re: usb/140160: [usb8] [acpi] USB ports are no longer "active" after ACPI suspend/resume cycle. Message-ID: <200912180750.nBI7o2OP028151@freefall.freebsd.org>
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The following reply was made to PR usb/140160; it has been noted by GNATS.
From: Mark Duller <mark.duller@oerc.ox.ac.uk>
To: bug-followup@FreeBSD.org, jamesbrandongooch@gmail.com
Cc:
Subject: Re: usb/140160: [usb8] [acpi] USB ports are no longer "active" after
ACPI suspend/resume cycle.
Date: Fri, 18 Dec 2009 07:41:51 +0000
With 8.0-Release I can reproduce what Brandon describes. If I do
not unload uhci before a suspend, USB ports work fine after the
first resume, but any subsequent suspend/resume cycles make the USB
ports no longer "active" (the USB ports appear to have no power). Even
if the uhci driver is unloaded after the first suspend/resume cycle, the
next suspend/resume cycle will result in 'inactive' USB ports.
If no USB modules have been loaded before the first suspend/resume
cycle, the USB ports become 'inactive' after resume, although I find I
can make them active again if I do a subsequent suspend/resume cycle
after loading some USB modules ("kldload usb umass ehci" in my test).
It's not clear to me whether this is related to the uhci bug.
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