Solve the problem that the TouchPad cannot be used after ubuntu12.04 logs on to the system

Solve the problem that the TouchPad cannot be used after ubuntu12.04 is logged on to the system. my current version is Acer4741G432g32. after ubuntu is updated, I found that the TouchPad can be used normally when logging on to the system, but cannot be used after logging on to the system, google searched and found the solution :... solve the problem that the TouchPad cannot be used after logging on to the system in ubuntu 12.04. my current version is Acer 4741G 432g32. after the ubuntu is updated, I found that the TouchPad can be used normally during system login, but it cannot be used after logging on to the system. google searched and found the solution: 1. open the terminal and enter the following command sudo modprobe-r psmouse sudo modprobe psmouse proto = imps. now the touchpad can be used properly. in order to use the touchpad without entering the command, add this command to the system startup item cd/etc/modprobe. d sudo vi options enter the following content in the new file: options psmouse proto = imps