Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752130AbdCMNOO (ORCPT ); Mon, 13 Mar 2017 09:14:14 -0400 Received: from mx1.redhat.com ([209.132.183.28]:36858 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750817AbdCMNOD (ORCPT ); Mon, 13 Mar 2017 09:14:03 -0400 Date: Mon, 13 Mar 2017 14:13:56 +0100 From: Benjamin Tissoires To: Thorsten Leemhuis Cc: Cameron Gutman , aduggan@synaptics.com, nick@shmanahar.org, cheiny@synaptics.com, linux-input@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: Synaptics RMI4 touchpad regression in 4.11-rc1 Message-ID: <20170313131356.GH4378@mail.corp.redhat.com> References: <375e67b5-2cb8-3491-1d71-d8650d6e9451@gmail.com> <7964888d-05dd-b109-973a-e0503884e2e2@leemhuis.info> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <7964888d-05dd-b109-973a-e0503884e2e2@leemhuis.info> X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.38]); Mon, 13 Mar 2017 13:14:02 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3376 Lines: 74 On Mar 13 2017 or thereabouts, Thorsten Leemhuis wrote: > Lo! On 12.03.2017 02:55, Cameron Gutman wrote: > > > > Beginning in 4.11-rc1, it looks like RMI4 is binding to my XPS 13 9343's > > Synaptics touchpad and dropping some errors into dmesg. Here are the > > messages that seem RMI-related: > > > > rmi4_f34 rmi4-00.fn34: rmi_f34v7_probe: Unrecognized bootloader version > > rmi4_f34: probe of rmi4-00.fn34 failed with error -22 > > rmi4_f01 rmi4-00.fn01: found RMI device, manufacturer: Synaptics, product: TM3038-001, fw id: 1832324 > > input: Synaptics TM3038-001 as /devices/pci0000:00/INT3433:00/i2c-7/i2c-DLL0665:01/0018:06CB:76AD.0001/input/input19 > > hid-rmi 0018:06CB:76AD.0001: input,hidraw0: I2C HID v1.00 Mouse [DLL0665:01 06CB:76AD] on i2c-DLL0665:01 > > FWIW, I get this on my XPS 13 DE (9360) with 4.11-rc1: > > input: SynPS/2 Synaptics TouchPad as > /devices/platform/i8042/serio1/input/input6 > rmi4_f34 rmi4-00.fn34: rmi_f34v7_probe: Unrecognized bootloader version > rmi4_f34: probe of rmi4-00.fn34 failed with error -22 > rmi4_f01 rmi4-00.fn01: found RMI device, manufacturer: Synaptics, > product: TM3038-003, fw id: 2375007 > input: Synaptics TM3038-003 as > /devices/pci0000:00/0000:00:15.1/i2c_designware.1/i2c-8/i2c-DLL075B:01/0018:06CB:76AF.0001/input/input20 > hid-rmi 0018:06CB:76AF.0001: input,hidraw0: I2C HID v1.00 Mouse > [DLL075B:01 06CB:76AF] on i2c-DLL075B:01 > > > […] > > Compared to hid-multitouch, the RMI stack seems to have completely broken > > palm rejection and introduced some random jumpiness during fine pointing > > motions. I don't know if these issues are caused by the above errors or > > are a separate issue. > > Just to confirm: I noticed "jumpiness during fine pointing motions" as > well since switching to 4.11-rc. Thanks both of you for the reports. Andrew, Jiri, I think switching everybody to rmi4-core was maybe not the best move. Could we add a module parameter somewhere to force switching back to hid-multitouch? (Or the other way around more likely). We might need to have users testing rmi4-core and report libinput bugs, but introducing such regressions for everybody is IMO not the right way. Note that I do not see any differences besides bug fixes when switching from PS/2 to RMI4-core on my Lenovo T450s, so maybe the hid-multitouch capable firmware does some more filtering (the Lenovos are not using HID for the touchpads). > > @benjamin: Just wondering: Could that have something to do with the > ps2->rmi handover? I noticed that patches to improve things in this area > are still circulating, which lead me to wonder if that might have > anything to do with this. But it's just a wild guess. This has nothing to do. ps2->rmi is not used at all by hid-rmi as the enumeration is done in the ACPI. The series you are mentioning are for touchpads that do not enumerate. Once enumerated (either through PS/2 or HID), the code should be the same. Cheers, Benjamin > > > The affected machine is an XPS 13 9343 running Fedora 25 with 4.11-rc1 > > and libinput 1.6.3-3.fc25 (latest in F25). > > Same setup here. In case it matters: I'm running Gnome-Shell in Wayland > mode. > > Ciao, Thorsten > > P.S.: I fixed the model number in above quotes from Cameron to avoid > confusion (he has a 9343, and not a 9443, as initially stated; see a > different mail in this thread for details)