using 2 screens

[uni-bar]

common issue: using two screens (one touch screen for the arena and one screen running PreyTouch gui) - results in displaying the trials on both screens.

solution: for the app to work properly with two screens

• map the label of the screen as it is recognized by the system: DISPLAY=:0 xrandr -q
  it will print all the found screen. e.g.:

      Screen 0: minimum 8 x 8, current 8 x 8, maximum 32767 x 32767
               HDMI-0 connected primary (normal left inverted right x axis y axis)
                  1920x1080     60.00 +  59.94    50.00  
                  1600x900      60.00  
                  1280x1024     75.02    60.02  
                  :
                  :
               DP-0 disconnected (normal left inverted right x axis y axis)
               DP-1 disconnected (normal left inverted right x axis y axis)
               DP-2 disconnected (normal left inverted right x axis y axis)
               DP-3 disconnected (normal left inverted right x axis y axis)
               DP-4 connected (normal left inverted right x axis y axis)
                  1920x1080     60.00 +  59.94    50.00  
                  1600x900      60.00  
                  :
                  :
                  :
                  720x576       50.00  
                  720x480       59.94  
                  640x480       75.00    59.94    59.93  
               DP-5 disconnected (normal left inverted right x axis y axis)
  

  in the .env file make sure to map the screens correctly. example for the above case:

  APP_DISPLAY='DP-4'                      # the touch screen
  EXTRA_SCREEN_SETTINGS="--right-of DP-0"                     #  the "main" screen (where you run PreyTouch gui)
  

  adjust properly the right-of /left-of, depending on your setup.