From: Nikolay Metchev Date: Tue, 9 Jun 2026 21:33:09 +0000 (+0100) Subject: platform/x86: intel-hid: Add HP ProBook x360 440 G1 to button_array_table X-Git-Url: http://git.ipfire.org/gitweb/?a=commitdiff_plain;h=c39023ca9a447f09c072080efc84d6874c2275c9;p=thirdparty%2Fkernel%2Flinux.git platform/x86: intel-hid: Add HP ProBook x360 440 G1 to button_array_table The volume rocker buttons on the HP ProBook x360 440 G1 convertible emit events 0xc4-0xc7 via the intel-hid ACPI device (INT33D5). These codes are only present in intel_array_keymap, which is used when the "5 button array" input device exists. On this machine button_array_present() returns false because the firmware does not advertise the array through the HEBC method, so notify_handler() routes the events to a NULL priv->array and they are dropped as "unknown event 0xc4". As a result the side volume keys do nothing. Add the machine to button_array_table so the array device is created and the volume rocker emits KEY_VOLUMEUP / KEY_VOLUMEDOWN. This is equivalent to booting with the enable_5_button_array=1 module parameter, which was used to confirm the fix on the affected hardware. Signed-off-by: Nikolay Metchev Reviewed-by: Hans de Goede Link: https://patch.msgid.link/20260609213309.445019-1-nikolaymetchev@gmail.com Reviewed-by: Ilpo Järvinen Signed-off-by: Ilpo Järvinen --- diff --git a/drivers/platform/x86/intel/hid.c b/drivers/platform/x86/intel/hid.c index 085093506dda9..73874d4369c16 100644 --- a/drivers/platform/x86/intel/hid.c +++ b/drivers/platform/x86/intel/hid.c @@ -156,6 +156,13 @@ static const struct dmi_system_id button_array_table[] = { DMI_MATCH(DMI_PRODUCT_NAME, "Surface Go 4"), }, }, + { + .ident = "HP ProBook x360 440 G1", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "HP"), + DMI_MATCH(DMI_PRODUCT_NAME, "HP ProBook x360 440 G1"), + }, + }, { } };