Return-path: Received: from mail-bw0-f46.google.com ([209.85.214.46]:49758 "EHLO mail-bw0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751272Ab1CPXHY convert rfc822-to-8bit (ORCPT ); Wed, 16 Mar 2011 19:07:24 -0400 From: Mihai =?utf-8?q?Don=C8=9Bu?= To: =?utf-8?q?Rafa=C5=82_Mi=C5=82ecki?= Subject: Re: [b43] usb device disconnects automatically after 1s Date: Thu, 17 Mar 2011 01:06:58 +0200 Cc: linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, linux-wireless@vger.kernel.org References: <201103170018.32061.mihai.dontu@gmail.com> <201103170022.24290.mihai.dontu@gmail.com> In-Reply-To: MIME-Version: 1.0 Content-Type: Text/Plain; charset="utf-8" Message-Id: <201103170106.58746.mihai.dontu@gmail.com> Sender: linux-wireless-owner@vger.kernel.org List-ID: On Thursday 17 March 2011 00:35:02 Rafał Miłecki wrote: > 2011/3/16 Mihai Donțu : > > Added linux-usb and linux-wireless to CC. > > > > On Thursday 17 March 2011 00:18:31 Mihai Donțu wrote: > >> Hi, > >> > >> I have just upgraded to 2.6.38 and discovered that I can't use my > >> wireless device (BCM4312 802.11a/b/g). I press Fn + F2, the bluetooth > >> led lights and after a second it turns off by itself. In dmesg I'm > >> seeing the following: > >> > >> [ 88.167212] usb 1-2.2: new full speed USB device using ehci_hcd and > >> address 5 > >> [ 88.782330] usb 1-2.2: USB disconnect, address 5 > >> > >> I switched to 2.6.37 until I'll have some time to bisect this. In the > >> mean time I have attached the output of lspci, interrupts and dmesg. > > I suspect it's WMI related. What is your machine? It's a Dell Latitude D520 but I can't find a link with full specs (in English). > Please check: > https://bugzilla.kernel.org/show_bug.cgi?id=31002 > http://comments.gmane.org/gmane.linux.acpi.devel/49577 > > I can't help you more, I just noticed such a issue reported on ACPI > ML, you have to dig into this yourself (or someone else may help you). Thanks for the links. I'll see if I can get anywhere from there. -- Mihai Donțu