Bug#457596: when -fb not provided
Reconfigures the screen to the specified size. All config-
ured monitors must fit within this size. When this option
is not provided, xrandr computes the smallest screen size
that will hold the set of configured outputs; this option
provides a way to override that behaviour.
is incorrect. When this option is not provided, the action is the same as
-q When this option is present, or when no configuration
changes are requested, xrandr will display the current
state of the system.
unless other options are provided.