> 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 adds 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.
>
> This is revision 2 as I got aware that there are yet another 2 dmi string
> combinations identifying the same device.
Please let me know if a patch like this could be accepted or if the i8042 quirk tables are in a freeze state and issues
like this should be fixed another way now?
> Signed-off-by: Werner Sembach <wse@xxxxxxxxxxxxxxxxxxx>
> Cc: stable@xxxxxxxxxxxxxxx
> ---
> drivers/input/serio/i8042-x86ia64io.h | 54 +++++++++++++++++++++++++++
> 1 file changed, 54 insertions(+)
>
> diff --git a/drivers/input/serio/i8042-x86ia64io.h b/drivers/input/serio/i8042-x86ia64io.h
> index 148a7c5fd0e2..e39d3d840a31 100644
> --- a/drivers/input/serio/i8042-x86ia64io.h
> +++ b/drivers/input/serio/i8042-x86ia64io.h
> @@ -1013,6 +1013,57 @@ 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 6 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, "SchenkerTechnologiesGmbH"),
> + DMI_MATCH(DMI_BOARD_NAME, "NS50MU"),
> + },
> + },
> + {
> + .matches = {
> + DMI_MATCH(DMI_SYS_VENDOR, "SchenkerTechnologiesGmbH"),
> + 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 +1387,9 @@ 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
