The Problem
After the release of Debian 10 Buster, I installed it on my Dell Inspiron 3558 laptop which comes with onboard Intel HD Graphics. I am using Xfce desktop environment instead of the default Gnome desktop. After the installation, I would intermittently face the problem where the whole desktop would suddenly just freeze and stop responding to the mouse and the keyboard. Even after hours of waiting the system would never come back to the normal state and the only solution was to hard reboot the whole system. It seemed really weird as prior to installing Debian 10, I had Debian 9 running on it for more than a year and I never had any such issues.