How to change main display when installing mint?

Question

linux

The motherboard has an LVDS1 connector for connecting a matrix. And there is HDMI.
The matrix connector is not used. The only monitor connected via HDMI.
There are no display settings in the bios. You cannot change the order or disable LVDS1 altogether.
Thus, at startup, Mint displays an image (table start shortcuts) on LVDS1, and on HDMI only wallpaper (but there is a mouse)
And there is no way to start the installation ....
How
PS installed ubuntu by pressing enter, and the installation went on. And then they turned it off from under the installed one (Build-in monitor)
but mint is needed.

Answer 1

CTRL+ALT+T - call the terminal
# sudo cinnamon-settings display- for cinnamon
And select the connected monitor as the main one.

Answer 2

Is it a laptop? The keyboard should have a screen switch key. I have it Fn-F8.
Also on Linux try pressing Alt-F2 and in the terminal (for Mate) type: mate-display-properties