I also have this issue, i found this: [ 11.698919] Synaptics Touchpad, model: 1, fw: 6.3, id: 0x1a0b1, caps: 0xa04713/0x200000 [ 11.806376] input: SynPS/2 Synaptics TouchPad as /devices/platform/i8042/serio1/input/input10 [ 144.250065] psmouse.c: TouchPad at isa0060/serio1/input0 lost sync at byte 1 [ 144.253222] psmouse.c: TouchPad at isa0060/serio1/input0 lost sync at byte 1 [ 144.254936] psmouse.c: TouchPad at isa0060/serio1/input0 lost sync at byte 1 [ 144.263110] psmouse.c: TouchPad at isa0060/serio1/input0 lost sync at byte 4 [ 144.265413] psmouse.c: TouchPad at isa0060/serio1/input0 lost sync at byte 1 [ 316.178405] psmouse.c: TouchPad at isa0060/serio1/input0 lost sync at byte 4 [ 316.180384] psmouse.c: TouchPad at isa0060/serio1/input0 lost sync at byte 1 [ 316.194743] psmouse.c: TouchPad at isa0060/serio1/input0 - driver resynched. [ 320.420388] psmouse.c: TouchPad at isa0060/serio1/input0 lost sync at byte 1 [ 320.422014] psmouse.c: TouchPad at isa0060/serio1/input0 lost sync at byte 1 [ 320.424375] psmouse.c: TouchPad at isa0060/serio1/input0 lost sync at byte 1 [ 320.426162] psmouse.c: TouchPad at isa0060/serio1/input0 lost sync at byte 1 [ 320.428330] psmouse.c: TouchPad at isa0060/serio1/input0 lost sync at byte 1
I reinstalled /var/cache/apt/archives/xserver-xorg-input-synaptics_1.1.2-1_amd64.deb The touch pad now works well again
