fix

dune-weaver-touch/dune-weaver-touch.service

@@ -2,6 +2,7 @@
 Description=Dune Weaver Touch Interface
 After=multi-user.target
 After=network-online.target
+After=systemd-user-sessions.service
 Wants=network-online.target
 
 [Service]
@@ -10,12 +11,22 @@ User=pi
 Group=pi
 WorkingDirectory=/home/pi/dune-weaver-touch
 
+# TTY allocation for proper console/GPU access
+TTYPath=/dev/tty1
+StandardInput=tty
+StandardOutput=journal
+StandardError=journal
+
 # EGLFS platform - direct framebuffer, no X11/Wayland needed
 Environment=QT_QPA_PLATFORM=eglfs
 Environment=QT_QPA_EGLFS_WIDTH=800
 Environment=QT_QPA_EGLFS_HEIGHT=480
+Environment=QT_QPA_EGLFS_INTEGRATION=eglfs_kms
 Environment=QT_IM_MODULE=qtvirtualkeyboard
 
+# DRM/GPU access
+Environment=XDG_RUNTIME_DIR=/run/user/1000
+
 # Kiosk mode flag
 Environment=KIOSK_MODE=1
 
@@ -29,9 +40,5 @@ RestartSec=10
 StartLimitInterval=200
 StartLimitBurst=5
 
-# Logging
-StandardOutput=journal
-StandardError=journal
-
 [Install]
 WantedBy=multi-user.target

dune-weaver-touch/install.sh

@@ -110,6 +110,9 @@ install_scripts() {
 setup_systemd() {
     echo "🚀 Setting up systemd service..."
 
+    # Get the user's UID for XDG_RUNTIME_DIR
+    USER_UID=$(id -u $ACTUAL_USER)
+
     # Update paths in the service file
     sed "s|/home/pi/dune-weaver-touch|$SCRIPT_DIR|g" "$SCRIPT_DIR/dune-weaver-touch.service" > /tmp/dune-weaver-touch.service
     sed -i "s|User=pi|User=$ACTUAL_USER|g" /tmp/dune-weaver-touch.service
@@ -120,13 +123,17 @@ setup_systemd() {
     sed -i "s|ExecStart=.*python.*main.py|ExecStart=$SCRIPT_DIR/venv/bin/python $SCRIPT_DIR/main.py|g" /tmp/dune-weaver-touch.service
     sed -i "s|ExecStartPre=.*|ExecStartPre=/bin/bash -c 'until curl -s http://localhost:8080/serial_status > /dev/null 2>\&1; do sleep 2; done'|g" /tmp/dune-weaver-touch.service
 
+    # Update XDG_RUNTIME_DIR with the correct UID
+    sed -i "s|XDG_RUNTIME_DIR=/run/user/[0-9]*|XDG_RUNTIME_DIR=/run/user/$USER_UID|g" /tmp/dune-weaver-touch.service
+
     # Copy service file
     cp /tmp/dune-weaver-touch.service /etc/systemd/system/dune-weaver-touch.service
 
     echo "   📋 Service configuration:"
-    echo "      User: $ACTUAL_USER"
+    echo "      User: $ACTUAL_USER (UID: $USER_UID)"
     echo "      Directory: $SCRIPT_DIR"
     echo "      Python: $SCRIPT_DIR/venv/bin/python"
+    echo "      Runtime: /run/user/$USER_UID"
 
     # Reload and enable service
     systemctl daemon-reload

dune-weaver-touch/test-egl.sh

@@ -0,0 +1,161 @@
+#!/bin/bash
+# Test EGL initialization with detailed debugging
+
+echo "🔍 EGL Initialization Test"
+echo "=========================="
+echo ""
+
+# Check current user
+echo "👤 Current User:"
+echo "   User: $(whoami)"
+echo "   UID: $(id -u)"
+echo "   Groups: $(groups)"
+echo ""
+
+# Check DRM/GPU devices and permissions
+echo "🎨 DRM/GPU Devices:"
+if [ -d "/dev/dri" ]; then
+    echo "   /dev/dri contents:"
+    ls -la /dev/dri/
+    echo ""
+
+    # Check which devices are accessible
+    for device in /dev/dri/*; do
+        if [ -r "$device" ] && [ -w "$device" ]; then
+            echo "   ✅ $device - accessible"
+        else
+            echo "   ❌ $device - NOT accessible"
+            ls -l "$device"
+        fi
+    done
+else
+    echo "   ⚠️  /dev/dri not found"
+fi
+echo ""
+
+# Check framebuffer
+echo "📺 Framebuffer:"
+if [ -c "/dev/fb0" ]; then
+    ls -l /dev/fb0
+    if [ -r "/dev/fb0" ] && [ -w "/dev/fb0" ]; then
+        echo "   ✅ /dev/fb0 accessible"
+    else
+        echo "   ❌ /dev/fb0 NOT accessible"
+    fi
+else
+    echo "   ❌ /dev/fb0 not found"
+fi
+echo ""
+
+# Check what's using the display
+echo "🔒 Display Usage:"
+if command -v lsof &> /dev/null; then
+    echo "   Processes using /dev/fb0:"
+    lsof /dev/fb0 2>/dev/null || echo "   (none)"
+    echo ""
+
+    if [ -d "/dev/dri" ]; then
+        echo "   Processes using DRM devices:"
+        for device in /dev/dri/*; do
+            PROCS=$(lsof "$device" 2>/dev/null)
+            if [ -n "$PROCS" ]; then
+                echo "   $device:"
+                echo "$PROCS"
+            fi
+        done
+    fi
+else
+    echo "   lsof not available"
+fi
+echo ""
+
+# Check for VC4 driver (Raspberry Pi)
+echo "🎮 Graphics Driver:"
+if lsmod | grep -q "vc4"; then
+    echo "   ✅ vc4 driver loaded"
+    lsmod | grep vc4
+elif lsmod | grep -q "v3d"; then
+    echo "   ✅ v3d driver loaded"
+    lsmod | grep v3d
+else
+    echo "   ⚠️  No VC4/V3D driver detected"
+fi
+echo ""
+
+# Check GPU memory (Raspberry Pi)
+if command -v vcgencmd &> /dev/null; then
+    echo "🧠 GPU Memory:"
+    vcgencmd get_mem gpu
+    echo ""
+fi
+
+# Test with minimal Qt app
+echo "🧪 Testing Qt EGL Initialization..."
+echo ""
+
+# Create minimal test Python script
+cat > /tmp/test_egl.py << 'EOF'
+import sys
+import os
+
+# Set environment for EGLFS
+os.environ['QT_QPA_PLATFORM'] = 'eglfs'
+os.environ['QT_QPA_EGLFS_WIDTH'] = '800'
+os.environ['QT_QPA_EGLFS_HEIGHT'] = '480'
+os.environ['QT_LOGGING_RULES'] = 'qt.qpa.*=true'
+
+print("Attempting to initialize Qt with EGLFS...")
+print(f"User: {os.getuid()}")
+print(f"Groups: {os.getgroups()}")
+
+try:
+    from PySide6.QtGui import QGuiApplication
+    from PySide6.QtQml import QQmlApplicationEngine
+
+    print("✅ PySide6 imported successfully")
+
+    app = QGuiApplication(sys.argv)
+    print("✅ QGuiApplication created")
+
+    # This is where EGL initialization happens
+    print("Platform:", app.platformName())
+
+    print("✅ SUCCESS: EGL initialized!")
+    sys.exit(0)
+
+except Exception as e:
+    print(f"❌ FAILED: {e}")
+    import traceback
+    traceback.print_exc()
+    sys.exit(1)
+EOF
+
+# Run the test
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+if [ -f "$SCRIPT_DIR/venv/bin/python" ]; then
+    echo "Running test with venv Python..."
+    "$SCRIPT_DIR/venv/bin/python" /tmp/test_egl.py
+    EXIT_CODE=$?
+    echo ""
+
+    if [ $EXIT_CODE -eq 0 ]; then
+        echo "✅ EGL test PASSED - Qt can initialize EGLFS"
+        echo "   The issue may be application-specific"
+    else
+        echo "❌ EGL test FAILED - System cannot initialize EGLFS"
+        echo ""
+        echo "Common fixes:"
+        echo "1. Add user to video group: sudo usermod -a -G video $(whoami)"
+        echo "2. Add user to render group: sudo usermod -a -G render $(whoami)"
+        echo "3. Logout and login again (or: newgrp video)"
+        echo "4. Stop any desktop: sudo systemctl stop lightdm"
+        echo "5. Check GPU memory: vcgencmd get_mem gpu (should be ≥128M)"
+    fi
+else
+    echo "❌ Virtual environment not found"
+    echo "   Run: sudo ./install.sh"
+fi
+
+# Cleanup
+rm -f /tmp/test_egl.py
+echo ""