From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793829332; b=tdhUCUZX/Bb2Y/j1X4itnKv5eOL2A0fOdzpqyUZDLDkVM6avb54AMMvytSs98RD+wLi7 Is7hQf0ZRCn0hsrcGOawFbOX0SqEsPo6+SvY26xln45c3WGw3Tqjxw6kiSufXSAY/aHcI 12YjF+PXt+FFRDzRLw3HCoTDuNdZwJrQAtkIVg2iG/VM0snizpUGfXouMe6Pi9/LS7Kcs gkLh3UlGTaVkmPm0Hw+zq+ICwlEiDbGfcC4C34pAmxXLfsdomSASuCMM3+t9tGHqGZRUZ P/Loh3cLQZORg1CFaqS2Bz3VL/SuWpn14W3XCVOHs/L+zZ1DUIgqV73F2ewgid3qDrQ== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793829332; h=Received:DKIM-Signature:From:To:Cc:Subject:Date:Message-ID:X-Mailer: In-Reply-To:References:User-Agent:X-stable:X-Patchwork-Hint: MIME-Version:Content-Transfer-Encoding; bh=xxLzd5qB0FKXCaNJixlGWG1KNV63pKuNmF6i+9srh+U=; b=PAhQN6Xa/yaJSC83NTUjYgK2OlcA0LSNhe4j8iBIk+Dv6a4wPPdbh5AvihiaQ/HBy14P Bz5CP5Vd1gjbkMrGMNlHSsLYqS3f0KwMMQ6yP6r0Qbcfni30aSuTERQN046+sERPIH0a2 +IasEinDi2zpQPhPplfCP6Q9jxqn4jm5Gv734Z39PHSzcTW8WZCoFlcRnOtpL7fuPbCTo j0RCGZ1Fcz3n+wPXRUU23iGcnRR+wG7rFvdWtXjqtLJacHiBJiuYLNpaRGFWTXCGBs3A0 db9Se4MybAfG98lx0dhcJYm/yGql4Fw3OVBq31hCTA7qGosXXpcbzMUvKES06k7v54g== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=linuxfoundation.org header.i=@linuxfoundation.org header.a=rsa-sha256 header.s=korg header.b=lvldbfl5; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7434A607491D; Wed, 4 Nov 2026 21:55:32 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key, unprotected) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.a=rsa-sha256 header.s=korg header.b=lvldbfl5 Received: by smtp.kernel.org (Postfix) with ESMTPSA id 143881F000C1; Wed, 4 Nov 2026 21:55:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1793829332; bh=xxLzd5qB0FKXCaNJixlGWG1KNV63pKuNmF6i+9srh+U=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=lvldbfl5vu1mn4+uHdQr0b+eZA6YrLdjHP4HUQrLF1qWpzMR26OnXsVN7aqrqL1ln +CYmde39GS3ZsVYf8kTag0gBO4QI51JUcd5hZxIYvqtMfmrOoMy8XzimMY5WG8LK3f iCPr7ss59MrqTccRhhQZKT96nzgiYxLAihqYTRgo= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Abhijeeth Babu , Mika Westerberg , Andi Shyti , Sasha Levin Subject: [PATCH 6.18 0060/1005] i2c: acpi: Force ELAN1300 touchpads to 100 kHz Date: Wed, 4 Nov 2026 15:56:33 -0500 Message-ID: <20261104211045.276779838@linuxfoundation.org> X-Mailer: git-send-email 2.56.0 In-Reply-To: <20261104211043.516122098@linuxfoundation.org> References: <20261104211043.516122098@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore X-Mailing-List: patches@lists.linux.dev List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.18-stable review patch. If anyone has any objections, please let me know. ------------------ From: Abhijeeth Babu [ Upstream commit 9e9762e578db7556bea644bb5a8a2435f63544d1 ] The ELAN1300 touchpad with HID ID 04F3:3104 on the ASUS VivoBook X513UA_KM513UA exhibits severe pointer jumps and erratic movement when the I2C bus operates at 400 kHz. The system DSDT describes the touchpad using an I2cSerialBusV2 resource with a speed of 0x00061A80, corresponding to 400 kHz, on the AMDI0010:03 controller. At this speed, libinput repeatedly reports: kernel bug: Touch jump detected and discarded Add ELAN1300 to i2c_acpi_force_100khz_device_ids so that it operates at 100 kHz. Before the change, nine touch-jump events were recorded, with additional messages suppressed by libinput's rate limiter. With the bus forced to 100 kHz, no touch-jump events have been observed and the touchpad operates normally. The affected system uses BIOS X513UA.319 dated 2023-05-09. Signed-off-by: Abhijeeth Babu Acked-by: Mika Westerberg Signed-off-by: Andi Shyti Link: https://lore.kernel.org/r/20260617192611.125513-1-babu.jeeth@gmail.com Signed-off-by: Sasha Levin --- drivers/i2c/i2c-core-acpi.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/i2c/i2c-core-acpi.c b/drivers/i2c/i2c-core-acpi.c index ed90858a27b7b..98ebbc973f212 100644 --- a/drivers/i2c/i2c-core-acpi.c +++ b/drivers/i2c/i2c-core-acpi.c @@ -372,6 +372,7 @@ static const struct acpi_device_id i2c_acpi_force_100khz_device_ids[] = { */ { "DLL0945", 0 }, { "ELAN06FA", 0 }, + { "ELAN1300", 0 }, {} }; -- 2.53.0