From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261602AbTKBJsK (ORCPT ); Sun, 2 Nov 2003 04:48:10 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261613AbTKBJsK (ORCPT ); Sun, 2 Nov 2003 04:48:10 -0500 Received: from [62.233.185.126] ([62.233.185.126]:260 "EHLO aclaptop.unregistered.futuro.pl") by vger.kernel.org with ESMTP id S261602AbTKBJsI (ORCPT ); Sun, 2 Nov 2003 04:48:08 -0500 From: Szymon =?iso-8859-2?q?Aceda=F1ski?= To: ruben@puettmann.net Subject: Re: Synaptics losing sync Date: Sun, 2 Nov 2003 10:48:33 +0100 User-Agent: KMail/1.5 References: In-Reply-To: Cc: linux-kernel@vger.kernel.org MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200311021048.33698.accek@poczta.gazeta.pl> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi! On Saturday 01 November 2003 23:37, Ruben Puettmann wrote: > > ... > > Synaptics driver lost sync at 1st byte > > Synaptics driver resynced. > > Losing too many ticks! > > TSC cannot be used as a timesource. (Are you running with SpeedStep?) > > Falling back to a sane timesource. > > Synaptics driver lost sync at 1st byte > > ... > > I can observe the same "Synaptics lost sync" messages on Acer TravelMate 242XC with ACPI enabled (without APM even compiled) on 2.6.0-test[0-9]. But I silently ignore these messages - touchpad works ok. I use an USB mouse, but messages appear even without it plugged. "Losing too many ticks" exists when I'm running with cpufreq [p4_clockmod] and clock=tsc (default). This is because of rescaling TSC pitch by cpufreq, I think. If I specify in bootloader clock=hpet, problem disappears. [Am I doing right?] I can provide more information if somebody is interested. Cheers Szymon