Touchpad and Audio port not wroking

I have issues with Dell Latitude 3510's touchpad and audio port, sometimes touchpad works fine but sometimes it wont work and also the cursor shakes without even touching the touchpad , sometimes mouse opens and closes task on its own without even touching the touchpad and also i have issues with audio port , it doesn't connect with any music system , if i want to connect it i have to restart the whole system and if bymistakely the audio jack gets out the system again needs a restart to reconnect the audio jack with audio port