void helloSurface(IMyTextSurface surface, int n = 0, string providerName = "NONE")
{
  string s = "provider: " + providerName + "\n";
  try {
    IMyTerminalBlock b = (IMyTerminalBlock)surface;
    s += "block: " + b.CustomName + "\n";
  } catch {
    s += "block: EXCEPTION\n";
  }
  s += "#" + n + " Name: " + surface.Name + "\n";
  s += "DisplayName: " + surface.DisplayName + "\n";

  surface.ContentType = ContentType.TEXT_AND_IMAGE;
  const string font = "Monospace";
  surface.Font = font;
  Vector2 scale = surface.MeasureStringInPixels(new StringBuilder(s), font, 1);
  Vector2 size = surface.SurfaceSize;
  s += "width: " + size.X + "\n";
  s += "est. text width: " + scale.X;
  surface.FontSize = size.X / scale.X;
  // the computed width seems off for some of the new displays, in particular "keyboard" paels
  surface.WriteText(s);
}

void Main(string argument)  
{
  // LCD Panels are not derived from  TextPanelProvider...
  List<IMyTextSurface> surfaces = new List<IMyTextSurface>();
  GridTerminalSystem.GetBlocksOfType<IMyTextSurface>(surfaces, b=> (Me.CubeGrid == ((IMyTerminalBlock)b).CubeGrid));
  foreach(var surface in surfaces)
    helloSurface(surface);

  // ... while the new Displays are not derived from MyTerminalBlock
  List<IMyTextSurfaceProvider> providers = new List<IMyTextSurfaceProvider>();
  GridTerminalSystem.GetBlocksOfType<IMyTextSurfaceProvider>(providers, b => (Me.CubeGrid == ((IMyTerminalBlock)b).CubeGrid));
  foreach(var provider in providers) {
    IMyTerminalBlock b = (IMyTerminalBlock) provider;
    string providerName = b.CustomName;
    for (int n = 0; n < provider.SurfaceCount; n++)
      helloSurface(provider.GetSurface(n), n, providerName);
  } 
}