From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 66817C4320E for ; Fri, 27 Aug 2021 06:57:49 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 45F7A60FC4 for ; Fri, 27 Aug 2021 06:57:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244285AbhH0G6g (ORCPT ); Fri, 27 Aug 2021 02:58:36 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58062 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S243036AbhH0G6g (ORCPT ); Fri, 27 Aug 2021 02:58:36 -0400 Received: from mail-wr1-x42e.google.com (mail-wr1-x42e.google.com [IPv6:2a00:1450:4864:20::42e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AB541C061757; Thu, 26 Aug 2021 23:57:47 -0700 (PDT) Received: by mail-wr1-x42e.google.com with SMTP id z4so8810161wrr.6; Thu, 26 Aug 2021 23:57:47 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=La6yDI849v69vetT2DNyixIDuUna3JBK/IQZg7j2d2Q=; b=njmcdUkEAWKr2M95rP8rNqdcuWKQLhqjTFkNpkzBysCWLPDGz7+5H/XWaZ1y6ajKeo 3Lhz1jj69/gHd/W5ByjQv1M8eq83BYVcOnD82ebvghvwdwWqRibItJ6rNq5188c2zoha aoT1vOUTyvhjdmETLtklVO0EUuP+SUJgOVVzWAMExidfcUyQ5rjffbC1NLCXvedxrGMZ Vo3w+EwgmO7AzwpckgZZ2Ef5+kuLL/kn95K9WW6JI1TpOnF3+1aplOxv6x0XZEMQhgNs LNmD5mjO0UKvoJASqqs8dBqYfT1sG+9zp1IbKH7D1YkL2ZotdkMzGY0ADB23NgMYN2W2 mSQg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=La6yDI849v69vetT2DNyixIDuUna3JBK/IQZg7j2d2Q=; b=O7LS15Q32K0qs8QFeOl/rGL7fcP6Ig5e4f8wqRiBkad3C1yiFSppuQSbk/1aEekJwM rhbrAybKKBkkBAW8D2LL8kIyVkKbN2eUXS6NTtAV5n/cuUI1ngELx0wNW1nmH2PZgG5J rZcxCghTc0e/QV/ozKlbV/tAvVLRzZ7Iip1/HcqWzBhyt1Y1IGUUe8bHPTS2YUu2l45K J4KlMARSwnD0E1KG3LKiy1L4ybytCvsBm+oyLadEiik9F8L61sqJ1BX7UP3vE43COJn+ HQyRrGFQnWOc+B1qUH0uCi3i5biG+t3cWnRdGn5fAF2RCVKHTpNJP2MMDlUG83s+e0NE igeQ== X-Gm-Message-State: AOAM533SYbLsQRoSSilncG7bmidvyc0pIIDbz7VKgtRs632uUPHGor2M i9llu8Nq0azgaXLtIIjcLGiEmt7eHyUsHiCchSHMxbw8bLUde2xx X-Google-Smtp-Source: ABdhPJz8ItkNDXEzJgJ3TB4cfG53J9d6MELrDBe43+FrWBWEABYXAdiMj8PM9ljy/+Zfhr9Tpiobclt15BTOCHaUkZU= X-Received: by 2002:adf:c549:: with SMTP id s9mr8461986wrf.344.1630047466162; Thu, 26 Aug 2021 23:57:46 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: Andrea Ippolito Date: Fri, 27 Aug 2021 08:57:10 +0200 Message-ID: Subject: Re: Touchpad stickiness on Dell Inspiron/XPS To: dmitry.torokhov@gmail.com, alex.hung@canonical.com Cc: linux-i2c@vger.kernel.org, linux-input@vger.kernel.org, platform-driver-x86@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org (resending as plain text) Hello everyone, I hope I find you well. I am writing this to report a touchpad issue faced by me and several other DELL users across several different distros (HW defect has been ruled out by people unable to reproduce on Windows). First thing that came to mind was to report this to the libinput project, which I did here: https://gitlab.freedesktop.org/libinput/libinput/-/issues/618 A similar report by another user followed shortly after: https://gitlab.freedesktop.org/libinput/libinput/-/issues/636 (will be closed as dupe eventually, so please keep #618 as reference) Issue has been also reported by yet another user on reddit: https://www.reddit.com/r/linuxhardware/comments/ofbzg3/dell_xps_15_9510_experience/h5ddy07/ and https://www.reddit.com/r/linuxhardware/comments/ofbzg3/dell_xps_15_9510_experience/h5zjwc8/?utm_source=reddit&utm_medium=web2x&context=3 And finally, I have reported it on the DELL user forums (no help whatsoever from DELL): https://www.dell.com/community/Inspiron/Tiger-Lake-DELL-Inspiron-Touchpad-Cursor-temporarily-drops/m-p/8021753#M126292 The investigation on the libinput side appears to be complete, as maintainers didn't spot anything weird there (also, the issue is also reproducible with the synaptics lib, suggesting that this might be lower level). Robert Martin suggested to raise this to you now, as per comment: https://gitlab.freedesktop.org/libinput/libinput/-/issues/618#note_1042277 I'm kind of new to Linux mailing lists and bug reporting, so please forgive me if I'm violating some rules or etiquette, I'd be glad to rectify if that's the case. I also don't know what is the best way to keep the conversation going, e.g. if there's an issue tracker or instead mailing lists are the preferred choice. You should find some interesting data in the above mentioned reports already, if not, please don't hesitate to let me know or chime in on libinput issue #618 directly. Thanks a lot in advance. Kind regards, Andrea IPPOLITO