BugLink: https://bugs.launchpad.net/bugs/1906128 It looks like the C15B laptop got another vendor: ByteSpeed LLC. Avoid AUX loopback on this touchpad as well, thus input subsystem will be able to recognize a Synaptics touchpad in the AUX port. BugLink: https://bugs.launchpad.net/bugs/1906128 Signed-off-by: Po-Hsu Lin <po-hsu.lin@xxxxxxxxxxxxx> Link: https://lore.kernel.org/r/20201201054723.5939-1-po-hsu.lin@xxxxxxxxxxxxx Cc: stable@xxxxxxxxxxxxxxx Signed-off-by: Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx> (cherry picked from commit a48491c65b513e5cdc3e7a886a4db915f848a5f5) Signed-off-by: Po-Hsu Lin <po-hsu.lin@xxxxxxxxxxxxx> --- drivers/input/serio/i8042-x86ia64io.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/input/serio/i8042-x86ia64io.h b/drivers/input/serio/i8042-x86ia64io.h index 82ff446..1f45010 100644 --- a/drivers/input/serio/i8042-x86ia64io.h +++ b/drivers/input/serio/i8042-x86ia64io.h @@ -223,6 +223,10 @@ static const struct dmi_system_id __initconst i8042_dmi_noloop_table[] = { DMI_MATCH(DMI_SYS_VENDOR, "PEGATRON CORPORATION"), DMI_MATCH(DMI_PRODUCT_NAME, "C15B"), }, + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "ByteSpeed LLC"), + DMI_MATCH(DMI_PRODUCT_NAME, "ByteSpeed Laptop C15B"), + }, }, { } }; -- 2.7.4
