Issues with Triple Display

[octomodz]

I did a fresh install of windows and MPF recently for my League of Legends pinball. GOt everything going again but the triple display that was previously;y working is now only displaying on the main monitor. It shows the 3 displays that are meant to go to across the monitors on the main. Here is the code that previously worked

window:
width: 2560
height: 3000
title: League of Legends
fullscreen: true
resizable: true
borderless: true
exit_on_escape: true
no_window: false
show_cursor: no

displays:

window:
width: 2560
height: 3000
display1:
width: 2560
height: 1440
display2:
width: 1920
height: 1080
display3:
width: 800
height: 480

slides:
slide_layout:
target: window
background_color: white #white for test
widgets:
- type: display
source_display: display1
width: 2560
height: 1440
x: right
y: 2400
anchor_x: right

  - type: display
    source_display: display2
    width: 1920
    height: 1080
    x: left
    y: 1140
    anchor_x: left
  - type: display
    source_display: display3
    width: 800
    height: 480
    x: left
    y: 125
    anchor_x: left
    anchor_y: bottom 

slide_player:
mc_ready:
slide_layout:
target: window

[colemanomartin]

There are a couple system problems I would rule out, which I suspect you already checked. If your extended desktop is not the resolution MPF expects, the multiple display will not work. Is the second and third monitors powered up when MPF starts? If your extended desktop monitor positions are different, it could also cause this problem. Also, if your MPF window is not the size of the extended desktop, (your MPF window is only full screen to your main monitor) this problem can happen. My config has a couple extra settings declared. I'll attach it in case its useful to you.

kivy_config:
kivy: # https://kivy.org/doc/stable/api-kivy.config.html#available-configuration-tokens
desktop: 1 # use 1. This option controls desktop OS specific features, such as enabling drag-able scroll-bar in scroll views, disabling of bubbles in TextInput etc. 0 is disabled, 1 is enabled.
exit_on_escape: true # Enables exiting kivy when escape is pressed. 0 is disabled, 1 is enabled.
pause_on_minimize: 0 # If set to 1, the main loop is paused and the on_pause event is dispatched when the window is minimized. This option is intended for desktop use only. Defaults to 0.
graphics: # https://kivy.org/doc/stable/api-kivy.config.html#available-configuration-tokens
borderless: true # If set to True, removes the window border/decoration. Window resizing must also be disabled to hide the resizing border.
window_state: visible # and maximized allows it to exist in a window. Visible = whole screen visible, also valid: hidden, minimized
fbo: hardware # uese hardware # also valid software, force-hardware
left: 0
top: 0
width: 3840 # 4K monitor is 3840x2160 Playfield jpg is 508x1190
height: 3184 # 2160+1024 of pf monitor
maxfps: 30
multisamples: 2
position: custom # use custom # auto, custom
show_cursor: false #use false
rotation: 0
resizable: false #use false when true after title bar grabbed, the window can be resized. false=no resizing
fullscreen: true #use true leaves a title bar which can be grabbed allowing display to be windowed. False no title bar, no grabbing, fake