Hardware: Lenovo Yoga 3 11 80J8                                                 

Touchpad hardware as seen in hwinfo output:                                     

47: PS/2 00.0: 10500 PS/2 Mouse                                                 
  [Created at input.249]                                                        
  Unique ID: AH6Q.UoVSLmJFjb8                                                   
  Hardware Class: mouse                                                         
  Model: "Elan Touchpad"                                                        
  Vendor: 0x04f3                                                                
  Device: 0x004e "Elan Touchpad"                                                
  Compatible to: int 0x0210 0x0001                                              
  Device File: /dev/input/mice (/dev/input/mouse1)                              
  Device Files: /dev/input/mice, /dev/input/mouse1, /dev/input/event13,
/dev/input/by-path/platform-INT3433:00-event-mouse,
/dev/input/by-path/platform-INT3433:00-mouse                     
  Device Number: char 13:63 (char 13:33)                                        
  Driver Info #0:                                                               
    Buttons: 1                                                                  
    Wheels: 0                                                                   
    XFree86 Protocol: explorerps/2                                              
    GPM Protocol: exps2                                                         
  Config Status: cfg=new, avail=yes, need=no, active=unknown                    

After some time the touchpad stops working and at the same time a               
message is logged like:                                                         

elan_i2c i2c-ELAN0600:00: invalid report id data (ff)