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=1794060596; b=u7lsHk11fh6dz6EJi3UTQ8fYibp16saip22s0hNp5NAXT71KsGhDbE5GetAS7xbynT0M miY29wKpX+QFmR0l4D/oSPsvIu9Hd6jg+p/H+r7evos45hVGYccpfGDlfTE+MMmYcFlWS TqhmCJ2arp1LMLNdeSgDZjcniEELLvZo+VAUu1KchvHwrvw038EKYyRU2gXepj+H3ykfd VJKE6d+XcRCCrlxXiGZcmBU8pNdpJznJRpFncblgrBtlloecFHNMhho0rCgxb0Qo6uhhS l7Y9Z7yyXi6b6OFVQB/+1lCslgN+ASez5bNqr1kfhCUj3iUcA7Z2UScfJfWbUKN0yQw== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794060596; 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=OhOH591EYH3vH0d9Hx+B5VUQQo7aNJbm+xzWKi6gZ0I=; b=aqIi8ndDgvih3gsJsqFcb6Dq+7xOtk9C7v1EZtEwY4B4gdz7GPHCMJvVCcnYYHL9eeYI w8pD8Ebe4AtOGZByajIGCv1S++jGjsVQa6RjNUtpPAUuh3xFp07RDWOgNh2mlMgLkmHaB g9L4RThmHb4hBXcM1sB1X95RG21TkPxdvLsXuSBFzWdHSQTViQsgxVRkZpYwMCwdpag+7 cSrxvFiFHkYCMVHrBX7XnNgDC4SB4dMA3hLmxk3chZeRvCrQ3WpcqvU6G84ueSykKx9hM Wj8MSg3w0kGsEOEw5XJ1eeY0eBZyCn3AP99T6Z97HPeGrtACOc2+4/rix39RiC2djng== 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=bA87pC1M; 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 62DC6606A326; Sat, 7 Nov 2026 14:09:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.a=rsa-sha256 header.s=korg header.b=bA87pC1M Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0A2B01F0089F; Sat, 7 Nov 2026 14:09:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1794060596; bh=OhOH591EYH3vH0d9Hx+B5VUQQo7aNJbm+xzWKi6gZ0I=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=bA87pC1MEzLKrROq5MXu83jZwBeFP3y4Kpk7thd0Ko+A7nkhb734ZLaGZwf+5E8SV ZaqW75BI/L4BMwlWBEy2JLQzrPDQprQA58SBrEbKP4asmuTfmSdIBFyiRO6zLlMVjx vN2n1prCSpQcO1gLT1JhsUAwpaYbO469d5AYjfV8= 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 6.12 0052/1536] i2c: acpi: Force ELAN1300 touchpads to 100 kHz Date: Sat, 7 Nov 2026 08:34:28 -0500 Message-ID: <20261107134959.120375163@linuxfoundation.org> X-Mailer: git-send-email 2.56.0 In-Reply-To: <20261107134957.653319350@linuxfoundation.org> References: <20261107134957.653319350@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore X-Mailing-List: stable@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.12-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 f43067f6797e9..b74f41b9515ae 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