Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755966AbYCLWns (ORCPT ); Wed, 12 Mar 2008 18:43:48 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751858AbYCLWnk (ORCPT ); Wed, 12 Mar 2008 18:43:40 -0400 Received: from eazy.amigager.de ([213.239.192.238]:39263 "EHLO eazy.amigager.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751779AbYCLWnj (ORCPT ); Wed, 12 Mar 2008 18:43:39 -0400 Date: Wed, 12 Mar 2008 23:44:11 +0100 From: Tino Keitel To: Alan Stern Cc: Jiri Kosina , linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org Subject: Re: broken access to a USB HID device after suspend Message-ID: <20080312224411.GB2290@dose.home.local> Mail-Followup-To: Alan Stern , Jiri Kosina , linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.17+20080114 (2008-01-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1320 Lines: 50 On Wed, Mar 12, 2008 at 17:44:56 -0400, Alan Stern wrote: [...] > Tino, it would help to see a kernel log showing what happened during > the suspend, resume, and failure of hidmon. It would help even more if > you test under a kernel with CONFIG_USB_DEBUG enabled. A full kernel log is available at http://tikei.de/dmesg > > Even if you can't reproduce the problem, do you have the complete > kernel log from before? > > Is it possible that this is really a problem with the LCD device, not > with the kernel? I ask because if the device was working properly then > unplugging and replugging the USB cable should do a complete reset. I did the following: - suspended the computer - switched off the LCD - resumed the computer - tried to use hidmon, got the error - unplugged the LCD - plugged in the LCD - tried to use hidmon again, got the error again - suspended the computer - resumed the computer - tried to use hidmon again, and it worked Note that I didn't switch off the LCD during the second suspend, in the case that matters. Regards, Tino -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/