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=-5.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,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 36BEDC04FF3 for ; Mon, 24 May 2021 11:43:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1783A61248 for ; Mon, 24 May 2021 11:43:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232711AbhEXLpR (ORCPT ); Mon, 24 May 2021 07:45:17 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51014 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232690AbhEXLpQ (ORCPT ); Mon, 24 May 2021 07:45:16 -0400 X-Greylist: delayed 367 seconds by postgrey-1.37 at lindbergh.monkeyblade.net; Mon, 24 May 2021 04:43:48 PDT Received: from smtp.ungleich.ch (smtp.ungleich.ch [IPv6:2a0a:e5c0:0:2:400:b3ff:fe39:7956]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E2D2FC061574 for ; Mon, 24 May 2021 04:43:48 -0700 (PDT) Received: from nb3.localdomain (localhost [IPv6:::1]) by smtp.ungleich.ch (Postfix) with ESMTP id CE432202B5; Mon, 24 May 2021 13:37:39 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ungleich.ch; s=mail; t=1621856259; bh=Qgu9ATNe/ZNN3kXY3DhEEP9QF8hYSxEa+6QfCZbETbk=; h=From:To:Cc:Subject:Date:From; b=aZ6rwoP1P4Cft8RdHnU7mUlS9AVuxUban7NOXU510OI9oYlOzuIvIuLhJRIJECslu y4zNhbd0enSNUMsEJ/ZnDC6tRfok7ZicxSEQJD4nq9XmP8RKt2+XEP5lJuS5aRLPsw W2hrcDql+YXT/KcgSY3WV1/QkpNg/bBhVxWMxH6UBHoqNDAZShdVtkuWuCxsdrqbDj sQjve9bFIgJGaQCY6KCBhgkUl6lnltGW2UjK5qOpErxpN+SMadoojDUlp9aiYIEzfB FdVRLWjHQn2qSbKmZcJ2czzwRswI4T1eltMKP5Y0pQZo/4G2sK0qeK5OI/xj3qPYHR iXOGR6LQJZPRg== Received: by nb3.localdomain (Postfix, from userid 1000) id A2A4E14C0444; Mon, 24 May 2021 13:38:06 +0200 (CEST) User-agent: mu4e 1.4.15; emacs 27.2 From: Nico Schottelius To: linux-input@vger.kernel.org Cc: Dmitry Torokhov Subject: Regression in Elan Touchpad driver / Linux 5.12 Message-ID: <87eedw5ptw.fsf@ungleich.ch> Date: Mon, 24 May 2021 13:38:06 +0200 MIME-Version: 1.0 Content-Type: text/plain Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org Hello, since migrating to Linux 5.12, the Elan touchpad stopped working for me. I created a bug report on https://bugzilla.kernel.org/show_bug.cgi?id=213093 2but I am not sure whether that reached anyone here. The symptom is that when running 5.12, the touchpad does not show up. I tested so far with 5.12.3, 5.12.4 and 5.12.6, all behave the same, latest dmesg output on 5.12.6 does not show the touchpad driver loading, only the one for the trackpoint: [13:35] nb3:~% dmesg| grep -i elan [ 11.845386] psmouse serio1: trackpoint: Elan TrackPoint firmware: 0x62, buttons: 3/3 [ 11.857853] input: TPPS/2 Elan TrackPoint as /devices/platform/i8042/serio1/input/input23 [13:35] nb3:~% The hardware I am using is an Lenovo X1 nano, however other people also reported this problem before. If there is anything I can do to debug this, any pointer would be appreciated. Best regards, Nico -- Sustainable and modern Infrastructures by ungleich.ch