Hi, I recently bought a Thinkpad A275 which unfortunately has a strange behaviour regarding its TrackPoint buttons [1]. With its default configuration (no proto option for psmouse) it is impossible to "press" the button for a longer time, e.g. to mark text or middle scroll. At work I'm using now a Thinkpad X270, which seem to use the same TrackPoint/TrackPad and does not have the issues. I would like to investigate what causes the different behaviour. A275: [ 39.043452] psmouse serio1: synaptics: queried max coordinates: x [..5712], y [..4780] [ 39.075521] psmouse serio1: synaptics: queried min coordinates: x [1232..], y [1074..] [ 39.075533] psmouse serio1: synaptics: Your touchpad (PNP: LEN2053 PNP0f13) says it can support a different bus. If i2c-hid and hid-rmi are not used, you might want to try setting psmouse.synaptics_intertouch to 1 and report this to linux-input@xxxxxxxxxxxxxxx. [ 39.132494] psmouse serio1: synaptics: Touchpad model: 1, fw: 8.16, id: 0x1e2b1, caps: 0xf40aa3/0x943300/0x12e800/0x410000, board id: 3075, fw id: 2622508 [ 39.132537] psmouse serio1: synaptics: serio: Synaptics pass-through port at isa0060/serio1/input0 [ 39.169047] input: SynPS/2 Synaptics TouchPad as /devices/platform/i8042/serio1/input/input9 [ 39.179114] mousedev: PS/2 mouse device common for all mice [ 39.835989] psmouse serio2: trackpoint: IBM TrackPoint firmware: 0x0e, buttons: 3/3 X270: [ 10.051334] psmouse serio1: synaptics: Your touchpad (PNP: LEN2046 PNP0f13) says it can support a different bus. If i2c-hid and hid-rmi are not used, you might want to try setting psmouse.synaptics_intertouch to 1 and report this to linux-input@xxxxxxxxxxxxxxx. [ 10.113613] psmouse serio1: synaptics: Touchpad model: 1, fw: 8.2, id: 0x1e2b1, caps: 0xf408a3/0x943300/0x12e800/0x410000, board id: 3075, fw id: 2527574 [ 10.113617] psmouse serio1: synaptics: serio: Synaptics pass-through port at isa0060/serio1/input0 [ 10.786545] psmouse serio2: trackpoint: IBM TrackPoint firmware: 0x0e, buttons: 3/3 [ 2905.443640] psmouse serio2: Failed to disable mouse on synaptics-pt/serio0 [ 2906.658135] psmouse serio1: synaptics: queried max coordinates: x [..5712], y [..4780] [ 2906.690080] psmouse serio1: synaptics: queried min coordinates: x [1232..], y [1074..] Btw, the A275 is running Arch on 5.2 and Ubuntu 19.04 on 5.0. Kind Regards Bjoern [1]https://bugzilla.kernel.org/show_bug.cgi?id=203897
