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

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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>
This commit is contained in:
Hans de Goede 2020-04-01 13:23:06 -07:00 committed by Dmitry Torokhov
parent c9c20ee3cf
commit ebc68cedec
1 changed files with 11 additions and 0 deletions
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11
drivers/input/serio/i8042-x86ia64io.h
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@ -530,6 +530,17 @@ 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"),
},
},
{ }
};