your Linux crashed. Ctrl+Alt+Backspace does nothing, nor do the F-keys. You know you shouldn’t have installed that bad driver, but you did it anyway. Here is how you do a safe reboots of the system avoiding the power button.
Inspired by Phil Haack’s article 19 Eponymous Laws of Software Development, Joey deVilla decided to collect laws, axioms and rules pertaining to mainstream software development and put them in a nice, easy-to-read table.