[PATCH 6.12 049/169] Input: i8042 - add quirk for ASUS Zenbook UX425QA_UM425QA

Greg Kroah-Hartman
2026-01-28T15:45:09Z

From: feng <alec.jiang@gmail.com>

commit 2934325f56150ad8dab8ab92cbe2997242831396 upstream.

The ASUS Zenbook UX425QA_UM425QA fails to initialize the keyboard after
a cold boot.

A quirk already exists for "ZenBook UX425", but some Zenbooks report
"Zenbook" with a lowercase 'b'. Since DMI matching is case-sensitive,
the existing quirk is not applied to these "extra special" Zenbooks.

Testing confirms that this model needs the same quirks as the ZenBook
UX425 variants.

Signed-off-by: feng <alec.jiang@gmail.com>
Link: https://patch.msgid.link/20260122013957.11184-1-alec.jiang@gmail.com
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/input/serio/i8042-acpipnpio.h | 11 +++++++++++
1 file changed, 11 insertions(+)

--- a/drivers/input/serio/i8042-acpipnpio.h
+++ b/drivers/input/serio/i8042-acpipnpio.h
@@ -116,6 +116,17 @@ static const struct dmi_system_id i8042_
.driver_data = (void *)(SERIO_QUIRK_NOMUX | SERIO_QUIRK_RESET_NEVER)
},
{
+ /*
+ * ASUS Zenbook UX425QA_UM425QA
+ * Some Zenbooks report "Zenbook" with a lowercase b.
+ */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Zenbook UX425QA_UM425QA"),
+ },
+ .driver_data = (void *)(SERIO_QUIRK_PROBE_DEFER | SERIO_QUIRK_RESET_NEVER)
+ },
+ {
/* ASUS ZenBook UX425UA/QA */
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),