I could play Rimworld A13 before... and for some reasons launching the game detected 3 screens.
By the way thanks for the attention milon and Tynan.
Code Select
Set current directory to /home/sergio/.local/share/Steam/steamapps/common/RimWorld
Found path: /home/sergio/.local/share/Steam/steamapps/common/RimWorld/RimWorldLinux.x86_64
Mono path[0] = '/home/sergio/.local/share/Steam/steamapps/common/RimWorld/RimWorldLinux_Data/Managed'
Mono path[1] = '/home/sergio/.local/share/Steam/steamapps/common/RimWorld/RimWorldLinux_Data/Mono'
Mono config path = '/home/sergio/.local/share/Steam/steamapps/common/RimWorld/RimWorldLinux_Data/Mono/etc'
displaymanager : xrandr version warning. 1.5
client has 3 screens
displaymanager screen (0)(LVDS1): 1366 x 768
Using libudev for joystick management
By the way thanks for the attention milon and Tynan.