From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754724Ab2D1Ped (ORCPT ); Sat, 28 Apr 2012 11:34:33 -0400 Received: from smtp-out003.kontent.com ([81.88.40.217]:56207 "EHLO smtp-out003.kontent.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754627Ab2D1PeJ convert rfc822-to-8bit (ORCPT ); Sat, 28 Apr 2012 11:34:09 -0400 From: Oliver Neukum To: Steffen =?utf-8?q?M=C3=BCller?= Subject: Re: [opensuse-factory] Re: usb midi keyboard broken [3.3.3 regression] [SOLUTION] Date: Sat, 28 Apr 2012 17:30:04 +0200 User-Agent: KMail/1.13.5 (Linux/3.3.0-12-desktop+; KDE/4.4.4; x86_64; ; ) Cc: opensuse-factory@opensuse.org, Alan Stern , Jiri Slaby , stable@kernel.org, Greg KH , USB list , Linux kernel mailing list References: <14061824.J155VMHgKz@thinkpadsm.rf-studio> In-Reply-To: <14061824.J155VMHgKz@thinkpadsm.rf-studio> MIME-Version: 1.0 Content-Type: Text/Plain; charset="utf-8" Content-Transfer-Encoding: 8BIT Message-Id: <201204281730.04550.oliver@neukum.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Am Samstag, 28. April 2012, 13:45:56 schrieb Steffen Müller: > Oh man! After look and try many usr relevant settings I found the malfactor: > tlp usb autosuspend settings. > > I use tlp (energy-saving tools for thinkpad laptops) and they autosuspend usb > devices by default. Now I have blacklisted my midi keyboard an all is good. I > can reproduce the problem this way. Seems so that the midi keyboard doesn't > wake up if it once sleeping. > > For all with similar problems: > edit /etc/default/tlp and set USB_BLACKLIST="" or > disable usb autosuspend entirely with USB_AUTOSUSPEND=0 > > thanks and sorry for the bother. No problem, but we ought to test whether we can make it work with a kernel quirk. Can you please test whether it works with USB_QUIRK_RESET_RESUME in drivers/usb/core/quirks.c ? Regards Oliver