From mboxrd@z Thu Jan 1 00:00:00 1970 From: Santiago Garcia Mantinan Subject: acpi breaking synaptics mouse support on Acer Travelmate 260 Date: Wed, 13 Aug 2003 00:17:51 +0200 Sender: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Message-ID: <20030812221751.GA2432@man.beta.es> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline Errors-To: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Help: List-Post: List-Subscribe: , List-Unsubscribe: , List-Archive: To: acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Cc: petero2-zq6IREYz3ykAvxtiuMwx3w@public.gmane.org List-Id: linux-acpi@vger.kernel.org Hi! I recently (the 11th) posted on lkml a message with subject "2.6.0test3 problems on Acer TravelMate 260 (ALSA,ACPIvsSynaptics,yenta)" on which I commented all the major problems I was seing on this machine. I have not received any replies there about the ACPI problem, so I have done further testing and I'm posting here hoping this is a better place to give this info, if this is not the right place please tell me where could I post this (I'm not on the list but given the description my guess was that this was the right place). The machine is a PIII mobile at 1GHz with intel chipset (i82801+i830M) 256 Megs of RAM the mouse is a Synaptics touchpad. The problem is that the mouse gets crazy (if using the normal mouse driver) or looses sync (if using the synaptics driver). I have looked at the interrupts happening when one moves the mouse and the number is much higher (from 3 to 10 times) in 2.6 compared with 2.4, also when one stops moving the mouse in 2.6 the interrupts keep on happening for half a second or so, while it stops inmediately in 2.4. I have tested this in 2.6.0test3 and test2 with and without the latest patch available on the acpi.sf.net site, the acpi-20030730-2.6.0-test2.diff.gz patch, I have also tested with and without APIC, having always the same result. The only way I found to get the mouse working ok was to fully remove ACPI, removing only some parts of it was of no use. Well, hope this helps to put a little bit of light on this problems, if you need more info to track this down, you want this as a bug on the bts, or whatever, just tell me. Regards... -- Manty/BestiaTester -> http://manty.net ------------------------------------------------------- This SF.Net email sponsored by: Free pre-built ASP.NET sites including Data Reports, E-commerce, Portals, and Forums are available now. Download today and enter to win an XBOX or Visual Studio .NET. http://aspnet.click-url.com/go/psa00100003ave/direct;at.aspnet_072303_01/01