diff --git a/wled00/bus_manager.cpp b/wled00/bus_manager.cpp
index af3f419c91..c676c89fc9 100644
--- a/wled00/bus_manager.cpp
+++ b/wled00/bus_manager.cpp
@@ -802,10 +802,11 @@ BusHub75Matrix::BusHub75Matrix(const BusConfig &bc) : Bus(bc.type, bc.start, bc.
   _hasRgb = true;
   _hasWhite = false;
   virtualDisp = nullptr; // todo: this should be solved properly, can cause memory leak (if omitted here, nothing seems to work)
+  _isVirtual = false;
   // aliases for easier reading
-  uint8_t panelWidth  = bc.pins[0];
-  uint8_t panelHeight = bc.pins[1];
-  uint8_t chainLength = bc.pins[2];
+  unsigned panelWidth  = bc.pins[0];
+  unsigned panelHeight = bc.pins[1];
+  unsigned chainLength = bc.pins[2];
   _rows = bc.pins[3];
   _cols = bc.pins[4];
 
@@ -822,7 +823,7 @@ BusHub75Matrix::BusHub75Matrix(const BusConfig &bc) : Bus(bc.type, bc.start, bc.
 
   mxconfig.clkphase = bc.reversed;
   // allow chain length up to 4, limit to prevent bad data from preventing boot due to low memory
-  mxconfig.chain_length = max((uint8_t) 1, min(chainLength, (uint8_t) 4));
+  mxconfig.chain_length = max(1U, min(chainLength, 4U));
 
   if (mxconfig.mx_height >= 64 && (mxconfig.chain_length > 1)) {
   #if defined(BOARD_HAS_PSRAM)                    // limitation to one panel only applies to boards without PSRAM
@@ -835,12 +836,12 @@ BusHub75Matrix::BusHub75Matrix(const BusConfig &bc) : Bus(bc.type, bc.start, bc.
   }
 
   if (bc.type == TYPE_HUB75MATRIX_HS) {
-      mxconfig.mx_width = min((uint8_t) 64, panelWidth); // TODO: UI limit is 128, this limits to 64
-      mxconfig.mx_height = min((uint8_t) 64, panelHeight);
+      mxconfig.mx_width = min(128U, panelWidth); // UI limit is 128
+      mxconfig.mx_height = min(64U, panelHeight);
   } else if (bc.type == TYPE_HUB75MATRIX_QS) {
       _isVirtual = true;
-      mxconfig.mx_width = min((uint8_t) 64, panelWidth) * 2;
-      mxconfig.mx_height = min((uint8_t) 64, panelHeight) / 2;
+      mxconfig.mx_width = min(128U, panelWidth) * 2;
+      mxconfig.mx_height = min(64U, panelHeight) / 2;
       mxconfig.driver = HUB75_I2S_CFG::FM6124;  // use FM6124 for "outdoor" 4-scan panels - workaround until we can make the driver user-configurable
   } else {
     DEBUGBUS_PRINTLN("Unknown type");
@@ -887,6 +888,12 @@ BusHub75Matrix::BusHub75Matrix(const BusConfig &bc) : Bus(bc.type, bc.start, bc.
   // HUB75_I2S_CFG::i2s_pins _pins={R1_PIN, G1_PIN, B1_PIN, R2_PIN, G2_PIN, B2_PIN, A_PIN, B_PIN, C_PIN, D_PIN, E_PIN, LAT_PIN, OE_PIN, CLK_PIN};
   mxconfig.gpio = {4, 5, 6, 7, 15, 16, 18, 8, 3, 42, 9, 40, 2, 41};
   
+#elif defined(SEENGREAT_V2_PINOUT)
+  DEBUGBUS_PRINTLN("MatrixPanel_I2S_DMA - S3 devKit-C with PSRAM, SEENGREAT_V2 pinout");
+  mxconfig.gpio = { 18, 8, 17,         // R1_PIN, G1_PIN, B1_PIN,
+                    16, 1, 15,         // R2_PIN, G2_PIN, B2_PIN,
+                    7, 48, 6, 47, 2,   //  A_PIN,  B_PIN,  C_PIN,  D_PIN,  E_PIN,
+                    21, 4, 5 };        //LAT_PIN, OE_PIN,CLK_PIN
 #else
   DEBUGBUS_PRINTLN("MatrixPanel_I2S_DMA - S3 with PSRAM");
   // HUB75_I2S_CFG::i2s_pins _pins={R1_PIN, G1_PIN, B1_PIN, R2_PIN, G2_PIN, B2_PIN, A_PIN, B_PIN, C_PIN, D_PIN, E_PIN, LAT_PIN, OE_PIN, CLK_PIN};
@@ -1011,15 +1018,15 @@ BusHub75Matrix::BusHub75Matrix(const BusConfig &bc) : Bus(bc.type, bc.start, bc.
   // chained panels with cols and rows define need the virtual display driver, so do quarter-scan panels
   if (chainLength > 1 && (_rows > 1 || _cols > 1) || bc.type == TYPE_HUB75MATRIX_QS) {
     _isVirtual = true;
-    chainType = CHAIN_BOTTOM_LEFT_UP; // TODO: is there any need to support other chaining types?
-    DEBUGBUS_PRINTF_P(PSTR("Using virtual matrix: %ux%u panels of %ux%u pixels\n"), _cols, _rows, mxconfig.mx_width, mxconfig.mx_height);
+    if (chainLength > 1 && (_rows > 1 || _cols > 1)) chainType = CHAIN_TOP_RIGHT_DOWN; // we need to use a _DOWN chainType, otherwise the display is upside-down
+    DEBUGBUS_PRINTF_P(PSTR("Using virtual matrix: %ux%u panels of %ux%u pixels\n"), _cols, _rows, mxconfig.mx_width/2, mxconfig.mx_height*2);
   }
   else {
     _isVirtual = false;
   }
 
   if (_isVirtual) {
-    virtualDisp = new VirtualMatrixPanel((*display), _rows, _cols, mxconfig.mx_width, mxconfig.mx_height, chainType);
+    virtualDisp = new VirtualMatrixPanel((*display), _rows, _cols, mxconfig.mx_width/2, mxconfig.mx_height*2, chainType);
     virtualDisp->setRotation(0);
     if (bc.type == TYPE_HUB75MATRIX_QS) {
       switch(panelHeight) {
@@ -1090,7 +1097,7 @@ void IRAM_ATTR BusHub75Matrix::setPixelColor(unsigned pix, uint32_t c) {
 uint32_t BusHub75Matrix::getPixelColor(unsigned pix) const {
   if (!_valid) return IS_BLACK; // note: no need to check pix >= _len as that is checked in containsPixel()
   if (_ledBuffer)
-    return uint32_t(_ledBuffer[pix]);
+    return uint32_t(_ledBuffer[pix]) & 0x00FFFFFF;  // FastLED 32bit is RGBA, we need RGBW
   else
     return getBitFromArray(_ledsDirty, pix) ? IS_DARKGREY: IS_BLACK;   // just a hack - we only know if the pixel is black or not
 }
@@ -1155,8 +1162,8 @@ std::vector<LEDType> BusHub75Matrix::getLEDTypes() {
 
 size_t BusHub75Matrix::getPins(uint8_t* pinArray) const {
   if (pinArray) {
-    pinArray[0] = mxconfig.mx_width;
-    pinArray[1] = mxconfig.mx_height;
+    pinArray[0] = _isVirtual ? mxconfig.mx_width  /2 : mxconfig.mx_width;
+    pinArray[1] = _isVirtual ? mxconfig.mx_height *2 : mxconfig.mx_height;
     pinArray[2] = mxconfig.chain_length;
     pinArray[3] = _rows;
     pinArray[4] = _cols;