So far a number of times i faced this issue that the Ubuntu kind of restarts after opening it from sleep. While i expect it resumes the previously opened applications it show an empty desktop with no application at all.
I found a similar issue on the dell community forum, but i do not have any Nvidia device.
I am using Ubuntu 18.04 on a Dell laptop. Previously i was using Ubuntu 16.04 with no issue at all. How to fix this issue?