From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Tibor Billes" Subject: Re: Possible regression 3.8.7 -> 3.9 with Dell touchpad Date: Fri, 10 May 2013 21:39:57 +0200 Message-ID: <20130510193957.89870@gmx.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from mout.gmx.net ([212.227.15.19]:52626 "EHLO mout.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753679Ab3EJTkE (ORCPT ); Fri, 10 May 2013 15:40:04 -0400 Received: from mailout-eu.gmx.com ([10.1.101.216]) by mrigmx.server.lan (mrigmx001) with ESMTP (Nemesis) id 0MfTEr-1Uuu5p3ZBz-00P6Wc for ; Fri, 10 May 2013 21:40:02 +0200 Sender: linux-input-owner@vger.kernel.org List-Id: linux-input@vger.kernel.org To: Dmitry Torokhov Cc: linux-input@vger.kernel.org, Dave Turvene , Kevin Cernekee =46rom: Dmitry Torokhov Sent: 05/10/13 12:54 AM >=20 > On Thu, May 09, 2013 at 10:59:58PM +0200, Tibor Billes wrote: > > Hi, > >=20 > > I found that after upgrading my kernel from 3.8.7 to 3.9 my touchpa= d only > > works partly. By that I mean I can use the touchpad to move the cur= sor > > around, but I cannot click with it by tapping. >=20 > Is the touchpad recognized as ALPS or PS/2 mouse in 3.8.7? Also, can = you > check that touchpad tapping is enabled in your desktop environment? In 3.8.7 it is recognized as PS/2 mouse and the desktop environment doe= sn't even offer any touchpad settings. In 3.9.1 the touchpad is recogni= zed as 'AlpsPS/2 ALPS DualPoint TouchPad' and yes, the touchpad setting= s appeared, and yes, clicking was disabled. Enabled it, works like a ch= arm :) So what happened is that the 3.8.7 kernel did not recognize my touchpad= , so it fell back to PS/2 which worked well for me. The 3.9 kernel reco= ngizes my touchpad correctly because Kevin updated the driver, and my s= ystem started using a different configuration as it knew it was a touch= pad and not some PS/2 device. Am I right? I recall looking for touchpad= settings in one of the 3.8.x kernels and I didn't find any so I didn't= bother looking for it again in 3.9... In this case I'm sorry for the false report, and thank you guys for the= driver update :) > Thanks. >=20 > > My machine is a Dell > > Latitude E5530. Since it is 100% reproducible on my machine, I bise= cted it, > > and found this commit: > >=20 > > commit 1302bac33d9e88cd43e482191a806998f3ed43cc > > Author: Kevin Cernekee > > Date: =C2=A0 Wed Feb 13 22:27:08 2013 -0800 > >=20 > > =C2=A0 =C2=A0Input: ALPS - add support for "Rushmore" touchpads > > =C2=A0 =C2=A0 > > =C2=A0 =C2=A0Rushmore touchpads are found on Dell E6230/E6430/E6530= =2E =C2=A0They use the V3 > > =C2=A0 =C2=A0protocol with slightly tweaked init sequences and repo= rt formats. > > =C2=A0 =C2=A0 > > =C2=A0 =C2=A0The E7 report is 73 03 0a, and the EC report is 88 08 = 1d > > =C2=A0 =C2=A0 > > =C2=A0 =C2=A0Credits: Emmanuel Thome reported the MT bitmap changes= =2E > > =C2=A0 =C2=A0 > > =C2=A0 =C2=A0Signed-off-by: Kevin Cernekee > > =C2=A0 =C2=A0Tested-by: Dave Turvene > > =C2=A0 =C2=A0Signed-off-by: Dmitry Torokhov > >=20 > > I did the bisection between 3.8.7 and 3.9, but also tried 3.9.1, it= is bad > > too. I also tried reverting that commit to make sure that it really= is > > what made my touchpad not working. The revert did fix my problem. > >=20 > > That's all I gathered so far, but I'd be happy to help further in a= ny way > > I can, just let me know. > >=20 > > Thanks, > > Tibor > > -- > > To unsubscribe from this list: send the line "unsubscribe linux-inp= ut" in > > the body of a message to majordomo@vger.kernel.org > > More majordomo info at http://vger.kernel.org/majordomo-info.html >=20 > --=20 > Dmitry -- To unsubscribe from this list: send the line "unsubscribe linux-input" = in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html