linux-kernel - Re: pm_op(): usb_dev_suspend+0x0/0x10 returns -2 on USB device 8087:0020

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Message-ID: <4B88D1CF.3040805@maroy.hu>
Date:	Sat, 27 Feb 2010 09:03:27 +0100
From:	Ákos Maróy <akos@...oy.hu>
To:	Edward Shao <laface.tw@...il.com>
CC:	Alan Stern <stern@...land.harvard.edu>,
	"Rafael J. Wysocki" <rjw@...k.pl>,
	Kernel development list <linux-kernel@...r.kernel.org>,
	Greg KH <gregkh@...e.de>, USB list <linux-usb@...r.kernel.org>
Subject: Re: pm_op(): usb_dev_suspend+0x0/0x10 returns -2 on USB device 	8087:0020

Edward,

> the whole system freezes for about 5 seconds or more?
> I meet a very similar issue before on HP Envy 15 laptop when I plugged
> usb device on xhci port.
> My problem was BIOS still controlled xhci host controller.
> Maybe you can try this patch.
> http://markmail.org/message/vqcbzks4gnbrlir3

thanks, indeed, this seems to have solved the freezing issue!


Akos

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