Added a condition in qt_gui.py to only set the font configuration if …

…the lcd type is not NONE. This change prevents font settings from being applied to devices without an LCD.

dcspy/qt_gui.py

@@ -1158,8 +1158,9 @@ def _start_clicked(self) -> None:
         for rb_key in self.bg_rb_device.buttons():
             if not rb_key.isChecked():
                 rb_key.setEnabled(False)
-        fonts_cfg = FontsConfig(name=self.le_font_name.text(), **getattr(self, f'{self.device.lcd_name}_font'))
-        self.device.lcd_info.set_fonts(fonts_cfg)
+        if self.device.lcd_info.type != LcdType.NONE:
+            fonts_cfg = FontsConfig(name=self.le_font_name.text(), **getattr(self, f'{self.device.lcd_name}_font'))
+            self.device.lcd_info.set_fonts(fonts_cfg)
         app_params = {'model': self.device, 'event': self.event}
         app_thread = Thread(target=dcspy_run, kwargs=app_params)
         app_thread.name = 'dcspy-app'