[PATCH] Input: i8042 - add Xiaomi Book Pro 14 to dumbkbd quirk list
From: Andrew Zhou <hidden>
Date: 2026-07-18 12:25:05
Also in:
lkml
Subsystem:
input (keyboard, mouse, joystick, touchscreen) drivers, the rest · Maintainers:
Dmitry Torokhov, Linus Torvalds
The Xiaomi Book Pro 14's built-in keyboard doesn't work by default. Add the device to the quirk table with SERIO_QUIRK_DUMBKBD so the keyboard works out of the box without needing i8042.dumbkbd on the kernel command line. Tested on a Xiaomi Book Pro 14. Signed-off-by: Andrew Zhou <redacted> --- drivers/input/serio/i8042-acpipnpio.h | 12 ++++++++++++ 1 file changed, 12 insertions(+)
diff --git a/drivers/input/serio/i8042-acpipnpio.h b/drivers/input/serio/i8042-acpipnpio.h
index 412f82d7a..6b18014e2 100644
--- a/drivers/input/serio/i8042-acpipnpio.h
+++ b/drivers/input/serio/i8042-acpipnpio.h@@ -1430,6 +1430,18 @@ static const struct dmi_system_id i8042_dmi_quirk_table[] __initconst = { }, .driver_data = (void *)(SERIO_QUIRK_DIRECT) }, + /* + * Some laptops have a broken keyboard controller that reports + * incorrect data. SERIO_QUIRK_DUMBKBD bypasses the intelligent + * probing and forces a basic PS/2 keyboard assumption. + */ + { + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "XIAOMI"), + DMI_MATCH(DMI_PRODUCT_NAME, "Xiaomi Book Pro 14"), + }, + .driver_data = (void *)(SERIO_QUIRK_DUMBKBD) + }, { } };
--
2.54.0