linux-kernel - Re: 2.6.30: suspend-to-ram, second s2r wakes up immediately

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Date:	Sun, 14 Jun 2009 16:44:51 -0400 (EDT)
From:	Alan Stern <stern@...land.harvard.edu>
To:	"Rafael J. Wysocki" <rjw@...k.pl>
cc:	Thomas Meyer <thomas@...3r.de>, Frans Pop <elendil@...net.nl>,
	<linux-kernel@...r.kernel.org>, <linux-usb@...r.kernel.org>,
	Jiri Kosina <jkosina@...e.cz>
Subject: Re: 2.6.30: suspend-to-ram, second s2r wakes up immediately

On Sun, 14 Jun 2009, Rafael J. Wysocki wrote:

> > Good idea. I should have thought of this myself. No, it's not above
> > device. I just tested several constellations and it's seems to be my usb
> > mouse. when the mouse is unplug suspend to ram works reliably.
> > 
> > how to fix the mouse's behaviour?
> 
> In principle, you should be able to disable wake-up on the USB controllers.

It should already be disabled.  Worth checking, though.  
/sys/devices/pci0000:00/0000:00:02.1/power/wakeup is the file to look 
at.

> As for the mouse itself, I don't know.  I'm not even sure if it's possible at
> all (CCing Jiri).

In theory you can disable remote wakeup on the mouse through the usual
mechanism.  The real question is why the mouse seems to be generating a
wakeup request when there's no apparent reason to do so.

Maybe it's just faulty.

Alan Stern

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