At least one modern Clevo barebone has the touchpad connected both via PS/2
and i2c interface. This causes a race condition between the psmouse and
i2c-hid driver. Since the full capability if the touchpad is available via
the i2c interface and the device has no external PS/2 port, it is save to
just ignore all ps2 mouses here to avoid this issue.
The know affected device is the Clevo NS70MU.
This patch add a new i8042_dmi_noaux_table with the dmi strings of the
affected device of different revisions. The table is then evaluated like
the other quirk tables in the i8042 driver.
Signed-off-by: Werner Sembach <wse@xxxxxxxxxxxxxxxxxxx>
---
drivers/input/serio/i8042-x86ia64io.h | 42 +++++++++++++++++++++++++++
1 file changed, 42 insertions(+)
diff --git a/drivers/input/serio/i8042-x86ia64io.h b/drivers/input/serio/i8042-x86ia64io.h
index 148a7c5fd0e2..48ad6247a1a0 100644
--- a/drivers/input/serio/i8042-x86ia64io.h
+++ b/drivers/input/serio/i8042-x86ia64io.h
@@ -1013,6 +1013,45 @@ static const struct dmi_system_id i8042_dmi_probe_defer_table[] __initconst = {
{ }
};
+static const struct dmi_system_id i8042_dmi_noaux_table[] __initconst = {
+ /*
+ * At least one modern Clevo barebone has the touchpad connected
+ * both via PS/2 and i2c interface. This causes a race condition
+ * between the psmouse and i2c-hid driver. Since the full
+ * capability if the touchpad is available via the i2c interface
+ * and the device has no external PS/2 port, it is save to just
+ * ignore all ps2 mouses here to avoid this issue.
+ * The know affected device is the
+ * TUXEDO InfinityBook S17 Gen6 / Clevo NS70MU which comes with
+ * one of the 4 different dmi string combinations below.
+ */
+ {
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "TUXEDO"),
+ DMI_MATCH(DMI_BOARD_NAME, "NS50MU"),
+ },
+ },
+ {
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "TUXEDO"),
+ DMI_MATCH(DMI_BOARD_NAME, "NS50_70MU"),
+ },
+ },
+ {
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Notebook"),
+ DMI_MATCH(DMI_BOARD_NAME, "NS50MU"),
+ },
+ },
+ {
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Notebook"),
+ DMI_MATCH(DMI_BOARD_NAME, "NS50_70MU"),
+ },
+ },
+ { }
+};
+
#endif /* CONFIG_X86 */
#ifdef CONFIG_PNP
@@ -1336,6 +1375,9 @@ static int __init i8042_platform_init(void)
if (dmi_check_system(i8042_dmi_probe_defer_table))
i8042_probe_defer = true;
+ if (dmi_check_system(i8042_dmi_noaux_table))
+ i8042_noaux = true;
+
/*
* A20 was already enabled during early kernel init. But some buggy
* BIOSes (in MSI Laptops) require A20 to be enabled using 8042 to
--
2.25.1
