From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261289AbULEKNO (ORCPT ); Sun, 5 Dec 2004 05:13:14 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261290AbULEKNO (ORCPT ); Sun, 5 Dec 2004 05:13:14 -0500 Received: from gate.ibr.ch ([213.144.140.114]:33038 "EHLO gate.ibr.ch") by vger.kernel.org with ESMTP id S261289AbULEKNE (ORCPT ); Sun, 5 Dec 2004 05:13:04 -0500 Date: Sun, 5 Dec 2004 11:13:01 +0100 To: linux-kernel@vger.kernel.org Subject: kernel 2.6.9: Mouse lost synchronization Message-ID: <20041205101301.GA12435@coruba.ibr.ch> Mail-Followup-To: uwe@ibr.ch, linux-kernel@vger.kernel.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.6+20040722i From: Uwe Storbeck Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi, I don't know if this is the right place for reporting kernel bugs, but I haven't found a direct e-mail address. With kernel 2.6.9 my mouse is nearly unusable. It's a Logitech optical mouse on the PS/2 port. I get lots of syslog messages like this: Dec 4 03:19:17 c3 kernel: psmouse.c: Explorer Mouse at isa0060/serio1/input0 lost synchronization, throwing 2 bytes away. Dec 4 03:19:44 c3 kernel: psmouse.c: Explorer Mouse at isa0060/serio1/input0 lost synchronization, throwing 1 bytes away. Dec 4 03:19:45 c3 kernel: psmouse.c: Explorer Mouse at isa0060/serio1/input0 lost synchronization, throwing 2 bytes away. Dec 4 03:19:46 c3 kernel: psmouse.c: Explorer Mouse at isa0060/serio1/input0 lost synchronization, throwing 3 bytes away. Dec 4 03:19:47 c3 kernel: psmouse.c: Explorer Mouse at isa0060/serio1/input0 lost synchronization, throwing 3 bytes away. Dec 4 03:19:53 c3 kernel: psmouse.c: Explorer Mouse at isa0060/serio1/input0 lost synchronization, throwing 2 bytes away. If I move the mouse it wildly generates button events instead of movement events, which completely scambles my desktop. I've tried multiple variations, with gpm and without it, with mouse set to autodetect and fix configured, all without success. I have replaced the mouse for testing with an old Logitech mechanical mouse. This works a bit better, but also often loses its synchronization: Dec 5 09:33:42 c3 kernel: psmouse.c: bad data from KBC - bad parity Dec 5 09:33:52 c3 last message repeated 2 times Dec 5 09:34:19 c3 kernel: psmouse.c: Mouse at isa0060/serio1/input0 lost synchronization, throwing 1 bytes away. This makes kernel 2.6 nearly unusable for a desktop system (with X11). I also get problems with the keyboard if I use my KVM switch with kernel 2.6.9. After switching keyboard to another machine and switching back to the system with kernel 2.6 the keyboard is disconnected. Nothing happens if I press a key. After switching KVM back and forth several times and pressing arbitrary keys multiple times keyboard comes back on line after a while. All of this hardware is working trouble-free with kernel 2.2.26 and 2.4.28. For now I'm forced to switch back to the stable kernel. If you need more information please drop me a CC. Regards, Uwe