From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-iy0-f174.google.com ([209.85.210.174]:61814 "EHLO mail-iy0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751137Ab2IGWpD (ORCPT ); Fri, 7 Sep 2012 18:45:03 -0400 Message-ID: <504A78E9.4030005@lwfinger.net> Date: Fri, 07 Sep 2012 17:44:57 -0500 From: Larry Finger MIME-Version: 1.0 To: Bjorn Helgaas CC: linux-pci@vger.kernel.org, LKML , =?UTF-8?B?5p2O5pyd5piO?= Subject: Question about failure in PCI power-state change Content-Type: text/plain; charset=UTF-8; format=flowed Sender: linux-pci-owner@vger.kernel.org List-ID: Hi, On occasion when I unload and reload driver rtl8192ce, I get the message "Refused to change power state, currently in D3" I added additional info to the printk and discovered that it was trying to change to state D0. The problem seems to occur when I have made a connection, unloaded the driver, and reloaded it. If I do not make a connection before unloading, then the problem is a lot less likely. This is with kernel 3.6-rc4 from wireless-testing. A Google search shows that the problem is usually due to suspend/resume difficulties, but this machine has not been suspended. I would appreciate any help that you might give in solving this issue. Thanks, Larry