I am using Dell Inspiron 15R 5521 laptop.
It had Ubuntu 12.04 installed at time of purchase.
Everything was working fine.Then i installed windows in it and now i have removed windows and installed Ubuntu 14.04 .
The problem i am facing is that my touchpad is not detected in it.
I searched on google , askUbuntu but could not get solution to my problem.
Also i went through this link (https://help.ubuntu.com/community/SynapticsTouchpad) but it did not help.
Can you please help me here.
Let me know what other information is required here.