Looks like the fimware 8.2 stall has the extra buttons spurious release bug.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=114321 Cc: [email protected] Signed-off-by: Benjamin Tissoires <[email protected]> --- drivers/input/mouse/synaptics.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c index 6025eb4..9f3b83f 100644 --- a/drivers/input/mouse/synaptics.c +++ b/drivers/input/mouse/synaptics.c @@ -862,8 +862,9 @@ static void synaptics_report_ext_buttons(struct psmouse *psmouse, if (!SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap)) return; - /* Bug in FW 8.1, buttons are reported only when ExtBit is 1 */ - if (SYN_ID_FULL(priv->identity) == 0x801 && + /* Bug in FW 8.1 & 8.2, buttons are reported only when ExtBit is 1 */ + if (((SYN_ID_FULL(priv->identity) == 0x801) || + (SYN_ID_FULL(priv->identity) == 0x802)) && !((psmouse->packet[0] ^ psmouse->packet[3]) & 0x02)) return; -- 2.5.0
