From 249fa862deccee0de8071e61fe9946f2fdeb3a8e Mon Sep 17 00:00:00 2001 From: Harinn Date: Sun, 4 Oct 2026 17:59:53 +0700 Subject: [PATCH] i2c: acpi: Force ASUE140D touchpads to 100 kHz The ASUE140D touchpad on the ASUS Zenbook UX3404VC (BIOS UX3404VC.303) starts lagging shortly after boot when the bus runs at the 400 kHz the DSDT asks for, and only recovers after rebinding i2c-hid. Forcing 100 kHz fixes it. Signed-off-by: Harinn Acked-by: Mika Westerberg Signed-off-by: Andi Shyti Link: https://patch.msgid.link/20261004-i2c-acpi-asue140d-100khz-v1-1-cc2dbad00470@pm.me --- 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 3af0e0551185..564e6ad66398 100644 --- a/drivers/i2c/i2c-core-acpi.c +++ b/drivers/i2c/i2c-core-acpi.c @@ -371,6 +371,7 @@ static const struct acpi_device_id i2c_acpi_force_100khz_device_ids[] = { * the device works without issues on Windows at what is expected to be * a 400KHz frequency. The root cause of the issue is not known. */ + { "ASUE140D", 0 }, { "DELL0A86", 0 }, { "DLL0945", 0 }, { "ELAN0678", 0 },