diff --git a/examples/Test/build_test/platformio_native.ini b/examples/Test/build_test/platformio_native.ini
index bfe2e39d..ff2c1136 100644
--- a/examples/Test/build_test/platformio_native.ini
+++ b/examples/Test/build_test/platformio_native.ini
@@ -1,4 +1,3 @@
-
 [env:native-default]
 platform = https://github.com/geeksville/platform-native.git
 ;build_flags = ${env.build_flags} -O0 -lgpiod
@@ -24,7 +23,7 @@ build_flags = -O0 -xc++ -std=c++14
 
 
 [env:native-portduino]
-platform          = https://github.com/meshtastic/platform-native.git#659e49346aa33008b150dfb206b1817ddabc7132
+platform          = https://github.com/meshtastic/platform-native.git#784007630ca43b4811c6637606440588bb5acf39
 framework         = arduino
 board             = cross_platform
 ;build_src_filter  = +<**/*.cpp> -<main/>
@@ -41,4 +40,4 @@ build_flags       =
 lib_deps          =
   SPI
   Wire
-  LovyanGFX
+  LovyanGFX
\ No newline at end of file
diff --git a/examples/Test/build_test/portduino/main.cpp b/examples/Test/build_test/portduino/main.cpp
index 8442ff45..0bb562d8 100644
--- a/examples/Test/build_test/portduino/main.cpp
+++ b/examples/Test/build_test/portduino/main.cpp
@@ -8,8 +8,6 @@ void setup()
   initGPIOPin(25, "gpiochip4");
   initGPIOPin(24, "gpiochip4");
 
-  DisplaySPI = new HardwareSPI;
-  DisplaySPI->begin("/dev/spidev0.0");
   Wire.begin(1);
   display = new LGFX();
   display->init();
@@ -18,6 +16,10 @@ void setup()
   canvas.setFont(&fonts::lgfxJapanMinchoP_32);
   canvas.setTextWrap(false);        // 右端到達時のカーソル折り返しを禁止
   canvas.createSprite(display->width(), 36);
+  canvas.clear();
+  canvas.setCursor(0, 0);
+  canvas.printf("Touch to start\n");
+  canvas.pushSprite(display, 0, 0);
 }
 
 
diff --git a/examples/Test/build_test/portduino/main.h b/examples/Test/build_test/portduino/main.h
index 558c8302..6d8f226b 100644
--- a/examples/Test/build_test/portduino/main.h
+++ b/examples/Test/build_test/portduino/main.h
@@ -6,7 +6,6 @@
 #include "PortduinoGPIO.h"
 #include <iostream>
 
-HardwareSPI *DisplaySPI;
 int initGPIOPin(int pinNum, std::string gpioChipName);
 
 class LGFX : public lgfx::LGFX_Device
@@ -25,7 +24,11 @@ class LGFX : public lgfx::LGFX_Device
       auto buscfg = _bus_instance.config();
       buscfg.spi_mode = 0;
       buscfg.pin_dc = 25;
-      _bus_instance.spi_device(DisplaySPI);
+      
+      // to use spidevX.Y
+      int x = 0;
+      int y = 0;
+      buscfg.spi_host = x + y << 4;
       _bus_instance.config(buscfg);            // applies the set value to the bus.
       _panel_instance.setBus(&_bus_instance); // set the bus on the panel.
     }