Comment 57 for bug 787738

(In reply to Przemek from comment #36)
> Similar problem here. Machine is the t440p with changed touchpad from t450
> (it fits and was working fine), some logs:
>
> [ 7.853125] rmi4_smbus 9-002c: registering SMbus-connected sensor
> [ 7.904417] rmi4_f01 rmi4-00.fn01: found RMI device, manufacturer:
> Synaptics, product: TM3053-008, fw id: 2491654
> [ 7.960935] input: Synaptics TM3053-008 as
> /devices/pci0000:00/0000:00:1f.3/i2c-9/9-002c/rmi4-00/input/input20
> [ 7.966394] serio: RMI4 PS/2 pass-through port at rmi4-00.fn03
> [ 8.373257] input: TPPS/2 IBM TrackPoint as
> /devices/pci0000:00/0000:00:1f.3/i2c-9/9-002c/rmi4-00/rmi4-00.fn03/serio3/
> input/input21
> [81220.734879] psmouse serio3: TrackPoint at rmi4-00.fn03/serio0/input0 lost
> synchronization, throwing 1 bytes away.
>
> Gentoo/ SuSe Tumbleweed.
> After resume from suspend trackpoint and touchpad doesn't work anymore.

I also have a T440p with the touchpad from the T450. My dmesg log does not show my TrackPoint throwing bytes away; however, I found that reloading the psmouse driver using modprobe temporarily fixes the issue... for a minute.