Commit cdfa83e1 authored Apr 01, 2020 by Hans de Goede Committed by Greg Kroah-Hartman Apr 17, 2020

Input: i8042 - add Acer Aspire 5738z to nomux list



commit ebc68cedec4aead47d8d11623d013cca9bf8e825 upstream.

The Acer Aspire 5738z has a button to disable (and re-enable) the
touchpad next to the touchpad.

When this button is pressed a LED underneath indicates that the touchpad
is disabled (and an event is send to userspace and GNOME shows its
touchpad enabled / disable OSD thingie).

So far so good, but after re-enabling the touchpad it no longer works.

The laptop does not have an external ps2 port, so mux mode is not needed
and disabling mux mode fixes the touchpad no longer working after toggling
it off and back on again, so lets add this laptop model to the nomux list.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20200331123947.318908-1-hdegoede@redhat.com


Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent e68129e6

drivers/input/serio/i8042-x86ia64io.h

+11 −0

Original line number	Diff line number	Diff line
		@@ -534,6 +534,17 @@ static const struct dmi_system_id __initconst i8042_dmi_nomux_table[] = {
		DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo LaVie Z"),
		},
		},
		{
		/*
		* Acer Aspire 5738z
		* Touchpad stops working in mux mode when dis- + re-enabled
		* with the touchpad enable/disable toggle hotkey
		*/
		.matches = {
		DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
		DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5738"),
		},
		},
		{ }
		};