From nobody Thu Dec 18 07:18:19 2025 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0186CC2BB3F for ; Mon, 20 Nov 2023 23:39:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232259AbjKTXjT (ORCPT ); Mon, 20 Nov 2023 18:39:19 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:32792 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229539AbjKTXjS (ORCPT ); Mon, 20 Nov 2023 18:39:18 -0500 Received: from mail-4317.proton.ch (mail-4317.proton.ch [185.70.43.17]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1C099C1; Mon, 20 Nov 2023 15:39:14 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bluemarch.art; s=protonmail; t=1700523551; x=1700782751; bh=dd+dNmKFN8lfQj43JesPqQvmmvSrg8D6LBMjVjoSI0M=; h=Date:To:From:Cc:Subject:Message-ID:Feedback-ID:From:To:Cc:Date: Subject:Reply-To:Feedback-ID:Message-ID:BIMI-Selector; b=qZkMdeeMys5x6Rm7NOwggG2wHha/2gDpdttSf2RQj0w+mULbS+KXbmt1E8PNEmczD YQekkf/BiAda0ONeI92h0wdKiNd23WxrfOBhv40jT2WdIF26KIz50cA85nzT7H8YX2 6adA6QR7UgpnzU90LzODgihhA4GQ6FKu6SjvcX30WJJ1up7DlV8i3ncAn61CcYyMyI Tg0a8nbBkl20r8nOKVaoMFaJZVZTuaSnmnLV3deBItHu1MqLPpiuFnSL/EpFOompiD TnmL6qj45mH0Q8mNeN/I9OPoLt0kfoxk/Fh95975CWDxmuTI1SpLNQ6vlieZqbntKg RMPstEnFj8jGQ== Date: Mon, 20 Nov 2023 23:39:07 +0000 To: linux-kernel@vger.kernel.org, linux-input@vger.kernel.org, dmitry.torokhov@gmail.com From: Szilard Fabian Cc: Szilard Fabian Subject: [PATCH RESEND] Input: i8042 - add Fujitsu Lifebook U728 to i8042 quirk table Message-ID: <20231120233520.264264-2-szfabian@bluemarch.art> Feedback-ID: 87830438:user:proton MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Another Fujitsu-related patch. In the initial boot stage the integrated keyboard of Fujitsu Lifebook U728 refuses to work and it's not possible to type for example a dm-crypt passphrase without the help of an external keyboard. i8042.nomux kernel parameter resolves this issue but using that a PS/2 mouse is detected. This input device is unused even when the i2c-hid-acpi kernel module is blacklisted making the integrated ELAN touchpad (04F3:3092) not working at all. So this notebook uses a hid-over-i2c touchpad which is managed by the i2c_designware input driver. Since you can't find a PS/2 mouse port on this computer and you can't connect a PS/2 mouse to it even with an official port replicator I think it's safe to not use the PS/2 mouse port at all. Signed-off-by: Szilard Fabian --- I think the same configuration could be applied to Lifebook U748 and U758 too but I can't test this theory on these machines. --- drivers/input/serio/i8042-acpipnpio.h | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/input/serio/i8042-acpipnpio.h b/drivers/input/serio/i8= 042-acpipnpio.h index 028e45bd050b..983f31014330 100644 --- a/drivers/input/serio/i8042-acpipnpio.h +++ b/drivers/input/serio/i8042-acpipnpio.h @@ -618,6 +618,14 @@ static const struct dmi_system_id i8042_dmi_quirk_tabl= e[] __initconst =3D { }, .driver_data =3D (void *)(SERIO_QUIRK_NOMUX) }, + { + /* Fujitsu Lifebook U728 */ + .matches =3D { + DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"), + DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK U728"), + }, + .driver_data =3D (void *)(SERIO_QUIRK_NOAUX) + }, { /* Gigabyte M912 */ .matches =3D { --=20 2.42.1