[ Thanks to linuxaria for this link.
“I bought a new monitor at home and added a second
monitor in the office, so I had a lot to do with the graphics of my
“What do you use in these cases? My preferred tool for all these
operations is certainly xrandr .
“In particular I’m used to use it from the command line version
and after doing some tests using the syntax that i’ve found in the
startup of the graphic environment.
“In this article we will see some common use case.
“The X Resize, Rotate and Reflect Extension (RandR) allows
clients to dynamically change X screens, so as to resize, rotate
and reflect the root window of a screen.”