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[23.128.96.18]) by mx.google.com with ESMTP id m17si145522eji.138.2020.06.01.11.14.49; Mon, 01 Jun 2020 11:15:12 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=IRWzij8J; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730200AbgFASJ7 (ORCPT + 99 others); Mon, 1 Jun 2020 14:09:59 -0400 Received: from mail.kernel.org ([198.145.29.99]:56426 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730937AbgFASJx (ORCPT ); Mon, 1 Jun 2020 14:09:53 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 8B5692077D; Mon, 1 Jun 2020 18:09:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1591034993; bh=im/pjVj87C1tYMmsvskGWoPrfPRoRrvTwkOr26E3t3A=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=IRWzij8JsnPvbNHwJmbsTJbMLshgw48bw67NaYyANIM1s+Usg5UPpF/MuHX2K8+Ig FoNWZu3XoTl3aTatmQAITkuedJoTPv30NqcJuK6GCHPSQKJqLMDyUMGciYyA9MD8kJ fIOY7eoLQ2L+CHlQ8gwC0FR+o2gIi7tT37go/27Q= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Kevin Locke , Dmitry Torokhov , Sasha Levin Subject: [PATCH 5.4 064/142] Input: i8042 - add ThinkPad S230u to i8042 nomux list Date: Mon, 1 Jun 2020 19:53:42 +0200 Message-Id: <20200601174044.531165263@linuxfoundation.org> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200601174037.904070960@linuxfoundation.org> References: <20200601174037.904070960@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Kevin Locke [ Upstream commit 18931506465a762ffd3f4803d36a18d336a67da9 ] On the Lenovo ThinkPad Twist S230u (3347-4HU) with BIOS version "GDETC1WW (1.81 ) 06/27/2019", whether booted in UEFI or Legacy/CSM mode the keyboard, Synaptics TouchPad, and TrackPoint either do not function or stop functioning a few minutes after boot. This problem has been noted before, perhaps only occurring on BIOS 1.57 and later.[1][2][3][4][5] This model does not have an external PS/2 port, so mux does not appear to be useful. Odds of a BIOS fix appear to be low: 1.57 was released over 6 years ago and although the [BIOS changelog] notes "Fixed an issue of UEFI touchpad/trackpoint/keyboard/touchscreen" in 1.58, it appears to be insufficient. Adding 33474HU to the nomux list avoids the issue on my system. [1]: https://bugs.launchpad.net/bugs/1210748 [2]: https://bbs.archlinux.org/viewtopic.php?pid=1360425 [3]: https://forums.linuxmint.com/viewtopic.php?f=46&t=41200 [4]: https://forums.linuxmint.com/viewtopic.php?f=49&t=157115 [5]: https://forums.lenovo.com/topic/findpost/27/1337119 [BIOS changelog]: https://download.lenovo.com/pccbbs/mobiles/gduj33uc.txt Signed-off-by: Kevin Locke Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/feb8a8339a67025dab3850e6377eb6f3a0e782ba.1587400635.git.kevin@kevinlocke.name Signed-off-by: Dmitry Torokhov Signed-off-by: Sasha Levin --- drivers/input/serio/i8042-x86ia64io.h | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/input/serio/i8042-x86ia64io.h b/drivers/input/serio/i8042-x86ia64io.h index 08e919dbeb5d..5bbc9152731d 100644 --- a/drivers/input/serio/i8042-x86ia64io.h +++ b/drivers/input/serio/i8042-x86ia64io.h @@ -541,6 +541,13 @@ static const struct dmi_system_id __initconst i8042_dmi_nomux_table[] = { DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5738"), }, }, + { + /* Lenovo ThinkPad Twist S230u */ + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_PRODUCT_NAME, "33474HU"), + }, + }, { } }; -- 2.25.1