Cannot set up dual monitors

Just installed CLDM 15.

I am trying to setup dual monitors.

When I go to the Control Center, and click on Displays, nothing happens.

Nevermind, I got some information on the Arch Linux site, and figured it out.

I created the file “/etc/X11/xorg.conf.d/10-monitor.conf” and put the following in it.

Section "Monitor"
    Identifier  "DVI-0"
    Option      "Primary" "true"
EndSection

Section "Monitor"
    Identifier  "VGA-0"
    Option      "LeftOf" "DVI-0"
EndSection

problem will be fixed in the package “mate-base/mate-control-center-1.12.1”
(сurrent version 1.12.0)

cl-update -s
emerge mate-control-center