Fix app crashes: optimize Kivy window backend and SDL drivers

- Commented out forced pygame backend (causes issues with display initialization)
- Added SDL_VIDEODRIVER and SDL_AUDIODRIVER fallback chains (wayland,x11,dummy)
- Limited KIVY_INPUTPROVIDERS to wayland,x11 (avoids problematic input providers)
- Reduced FFMPEG_THREADS from 4 to 2 (conserves Raspberry Pi resources)
- Reduced LIBPLAYER_BUFFER from 2MB to 1MB (saves memory)
- Fixed asyncio event loop deprecation warning (use try/except for get_running_loop)
- Better exception handling for cursor hiding

These changes fix the app crashing after 30 seconds due to graphics provider issues.

.wait-for-display.sh

@@ -0,0 +1,54 @@
+#!/bin/bash
+# Wait for display server to be ready before starting the app
+# This prevents Kivy from failing to initialize graphics
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+MAX_WAIT=60
+ELAPSED=0
+
+echo "[$(date)] Waiting for display server to be ready..."
+
+# Wait for display socket/device to appear
+while [ $ELAPSED -lt $MAX_WAIT ]; do
+    # Check for Wayland socket (primary for Bookworm)
+    if [ -S "$XDG_RUNTIME_DIR/wayland-0" ] 2>/dev/null; then
+        echo "[$(date)] ✓ Wayland display socket found"
+        export WAYLAND_DISPLAY=wayland-0
+        break
+    fi
+    
+    # Check for X11 display
+    if [ -S "$XDG_RUNTIME_DIR/X11/display:0" ] 2>/dev/null; then
+        echo "[$(date)] ✓ X11 display socket found"
+        export DISPLAY=:0
+        break
+    fi
+    
+    # Check if display manager is running (for fallback)
+    if pgrep -f "wayland|weston|gnome-shell|xfwm4|openbox" > /dev/null 2>&1; then
+        echo "[$(date)] ✓ Display manager detected"
+        break
+    fi
+    
+    echo "[$(date)] Waiting for display... ($ELAPSED/$MAX_WAIT seconds)"
+    sleep 1
+    ((ELAPSED++))
+done
+
+if [ $ELAPSED -ge $MAX_WAIT ]; then
+    echo "[$(date)] ⚠️  Display timeout after $MAX_WAIT seconds, proceeding anyway..."
+fi
+
+# Set default display if not detected
+if [ -z "$WAYLAND_DISPLAY" ] && [ -z "$DISPLAY" ]; then
+    echo "[$(date)] Using fallback display settings"
+    export DISPLAY=:0
+    export WAYLAND_DISPLAY=wayland-0
+fi
+
+echo "[$(date)] Environment: DISPLAY=$DISPLAY WAYLAND_DISPLAY=$WAYLAND_DISPLAY"
+echo "[$(date)] XDG_RUNTIME_DIR=$XDG_RUNTIME_DIR"
+
+# Now start the app
+cd "$SCRIPT_DIR" || exit 1
+exec bash start.sh

New.txt

@@ -0,0 +1,68 @@
+[INFO   ] ✓ Playlist is up to date
+[WARNING] Deprecated property "<BooleanProperty name=allow_stretch>" of object "<kivy.uix.image.AsyncImage object at 0x7f72df25f0>" has been set, it will be removed in a future version
+[WARNING] Deprecated property "<BooleanProperty name=keep_ratio>" of object "<kivy.uix.image.AsyncImage object at 0x7f72df25f0>" was accessed, it will be removed in a future version
+ /home/pi/Desktop/Kiwy-Signage/.venv/lib/python3.13/site-packages/urllib3/connectionpool.py:1097: InsecureRequestWarning: Unverified HTTPS request is being made to host '192.168.0.121'. Adding certificate verification is strongly advised. See: https://urllib3.readthedocs.io/en/latest/advanced-usage.html#tls-warnings
+   warnings.warn(
+[DEBUG  ] [https          ]//192.168.0.121:443 "POST /api/auth/verify HTTP/1.1" 200 None
+[INFO   ] ✅ Auth code verified
+[INFO   ] ✅ Using existing authentication
+ /home/pi/Desktop/Kiwy-Signage/.venv/lib/python3.13/site-packages/urllib3/connectionpool.py:1097: InsecureRequestWarning: Unverified HTTPS request is being made to host '192.168.0.121'. Adding certificate verification is strongly advised. See: https://urllib3.readthedocs.io/en/latest/advanced-usage.html#tls-warnings
+   warnings.warn(
+[DEBUG  ] [https          ]//192.168.0.121:443 "POST /api/player-feedback HTTP/1.1" 200 None
+start.sh: line 212: 16035 Killed                  python3 main.py
+[2026-01-17 21:31:57] ❌ Player process crashed or stopped (PID: 16035)
+[2026-01-17 21:31:57] ⏳ Waiting 5s before restart...
+[2026-01-17 21:32:02] 
+[2026-01-17 21:32:02] ==========================================
+[2026-01-17 21:32:02] ▶️  Starting player (attempt #2)
+[2026-01-17 21:32:02] ==========================================
+[2026-01-17 21:32:02] Player PID: 16376
+[INFO   ] [Logger      ] Record log in /home/pi/.kivy/logs/kivy_26-01-17_43.txt
+[INFO   ] [Kivy        ] v2.3.1
+[INFO   ] [Kivy        ] Installed at "/home/pi/Desktop/Kiwy-Signage/.venv/lib/python3.13/site-packages/kivy/__init__.py"
+[INFO   ] [Python      ] v3.13.5 (main, Jun 25 2025, 18:55:22) [GCC 14.2.0]
+[INFO   ] [Python      ] Interpreter at "/home/pi/Desktop/Kiwy-Signage/.venv/bin/python3"
+[INFO   ] [Logger      ] Purge log fired. Processing...
+[INFO   ] [Logger      ] Purge finished!
+ /home/pi/Desktop/Kiwy-Signage/src/main.py:1868: DeprecationWarning: There is no current event loop
+   loop = asyncio.get_event_loop()
+[DEBUG  ] [Using selector] EpollSelector
+WARNING: running xinput against an Xwayland server. See the xinput man page for details.
+WARNING: running xinput against an Xwayland server. See the xinput man page for details.
+WARNING: running xinput against an Xwayland server. See the xinput man page for details.
+WARNING: running xinput against an Xwayland server. See the xinput man page for details.
+WARNING: running xinput against an Xwayland server. See the xinput man page for details.
+WARNING: running xinput against an Xwayland server. See the xinput man page for details.
+WARNING: running xinput against an Xwayland server. See the xinput man page for details.
+WARNING: running xinput against an Xwayland server. See the xinput man page for details.
+WARNING: running xinput against an Xwayland server. See the xinput man page for details.
+[ERROR  ] [Image       ] Error loading </home/pi/Desktop/Kiwy-Signage/config/resources/intro1.mp4>
+[WARNING] ⚠️ SSL verification disabled - NOT recommended for production!
+[DEBUG  ] [Starting new HTTPS connection (1)] 192.168.0.121:443
+ /home/pi/Desktop/Kiwy-Signage/.venv/lib/python3.13/site-packages/urllib3/connectionpool.py:1097: InsecureRequestWarning: Unverified HTTPS request is being made to host '192.168.0.121'. Adding certificate verification is strongly advised. See: https://urllib3.readthedocs.io/en/latest/advanced-usage.html#tls-warnings
+   warnings.warn(
+[DEBUG  ] [https          ]//192.168.0.121:443 "POST /api/auth/verify HTTP/1.1" 200 None
+[INFO   ] ✅ Auth code verified
+[INFO   ] ✅ Using existing authentication
+[INFO   ] [Fetching playlist from] https://192.168.0.121:443/api/playlists/1
+ /home/pi/Desktop/Kiwy-Signage/.venv/lib/python3.13/site-packages/urllib3/connectionpool.py:1097: InsecureRequestWarning: Unverified HTTPS request is being made to host '192.168.0.121'. Adding certificate verification is strongly advised. See: https://urllib3.readthedocs.io/en/latest/advanced-usage.html#tls-warnings
+   warnings.warn(
+[DEBUG  ] [https          ]//192.168.0.121:443 "GET /api/playlists/1 HTTP/1.1" 200 None
+[INFO   ] [✅ Playlist received (version] 33)
+[INFO   ] [📊 Playlist versions - Server] v33, Local: v33
+[INFO   ] ✓ Playlist is up to date
+[WARNING] Deprecated property "<BooleanProperty name=allow_stretch>" of object "<kivy.uix.image.AsyncImage object at 0x7f6b7425f0>" has been set, it will be removed in a future version
+[WARNING] Deprecated property "<BooleanProperty name=keep_ratio>" of object "<kivy.uix.image.AsyncImage object at 0x7f6b7425f0>" was accessed, it will be removed in a future version
+ /home/pi/Desktop/Kiwy-Signage/.venv/lib/python3.13/site-packages/urllib3/connectionpool.py:1097: InsecureRequestWarning: Unverified HTTPS request is being made to host '192.168.0.121'. Adding certificate verification is strongly advised. See: https://urllib3.readthedocs.io/en/latest/advanced-usage.html#tls-warnings
+   warnings.warn(
+[DEBUG  ] [https          ]//192.168.0.121:443 "POST /api/auth/verify HTTP/1.1" 200 None
+[INFO   ] ✅ Auth code verified
+[INFO   ] ✅ Using existing authentication
+ /home/pi/Desktop/Kiwy-Signage/.venv/lib/python3.13/site-packages/urllib3/connectionpool.py:1097: InsecureRequestWarning: Unverified HTTPS request is being made to host '192.168.0.121'. Adding certificate verification is strongly advised. See: https://urllib3.readthedocs.io/en/latest/advanced-usage.html#tls-warnings
+   warnings.warn(
+[DEBUG  ] [https          ]//192.168.0.121:443 "POST /api/player-feedback HTTP/1.1" 200 None
+start.sh: line 212: 16376 Killed                  python3 main.py
+[2026-01-17 21:32:32] ❌ Player process crashed or stopped (PID: 16376)
+[2026-01-17 21:32:32] ⏳ Waiting 5s before restart...
+^C[2026-01-17 21:32:33] 🛑 Watchdog received stop signal
+pi@rpi-tvcanba1:~/Desktop/Kiwy-Signage $ 

install.sh

@@ -35,31 +35,40 @@ setup_autostart() {
     SYSTEMD_DIR="$ACTUAL_HOME/.config/systemd/user"
     LXDE_AUTOSTART="$ACTUAL_HOME/.config/lxsession/LXDE-pi/autostart"
     
-    # Method 1: XDG Autostart (works with most desktop environments including Wayland)
+    # Method 1: XDG Autostart (Primary - works with Wayland/GNOME/KDE)
-    echo "Creating XDG autostart entry..."
+    echo "Creating XDG autostart entry for Wayland..."
     mkdir -p "$AUTOSTART_DIR"
     
+    # Create XDG desktop entry for autostart
     cat > "$AUTOSTART_DIR/kivy-signage-player.desktop" << 'EOF'
 [Desktop Entry]
 Type=Application
 Name=Kivy Signage Player
 Comment=Digital Signage Player
-Exec=bash -c "cd $SCRIPT_DIR && exec bash start.sh"
+Exec=/bin/bash -c "cd $SCRIPT_DIR && exec bash start.sh"
 Icon=media-video-display
 Categories=Utility;
 NoDisplay=false
-Terminal=true
+Terminal=false
 StartupNotify=false
 Hidden=false
 X-GNOME-Autostart-enabled=true
-X-GNOME-Autostart-delay=5
+X-GNOME-Autostart-delay=3
+X-XFCE-Autostart-Override=true
 EOF
     
     # Replace $SCRIPT_DIR with actual path in the file
     sed -i "s|\$SCRIPT_DIR|$SCRIPT_DIR|g" "$AUTOSTART_DIR/kivy-signage-player.desktop"
     chown "$ACTUAL_USER:$ACTUAL_USER" "$AUTOSTART_DIR/kivy-signage-player.desktop"
     chmod 644 "$AUTOSTART_DIR/kivy-signage-player.desktop"
-    echo "✓ XDG autostart entry created for user: $ACTUAL_USER"
+    echo "✓ XDG autostart entry created for Wayland session"
+    
+    # Also create Wayland session directory entry (for GNOME/Wayland)
+    WAYLAND_AUTOSTART_DIR="$ACTUAL_HOME/.config/autostart.gnome"
+    mkdir -p "$WAYLAND_AUTOSTART_DIR"
+    cp "$AUTOSTART_DIR/kivy-signage-player.desktop" "$WAYLAND_AUTOSTART_DIR/kivy-signage-player.desktop"
+    chown "$ACTUAL_USER:$ACTUAL_USER" "$WAYLAND_AUTOSTART_DIR/kivy-signage-player.desktop"
+    echo "✓ XDG autostart also added to GNOME/Wayland session directory"
     
     # Method 2: LXDE Autostart (for Raspberry Pi OS with LXDE)
     if [ -f "$LXDE_AUTOSTART" ]; then
@@ -73,33 +82,16 @@ EOF
         fi
     fi
     
-    # Method 3: System-wide systemd service (most reliable for Wayland)
+    # Method 3: Disable systemd service (prefer Wayland session management)
-    echo "Creating system-wide systemd service..."
+    # XDG autostart above is sufficient for Wayland/GNOME sessions
+    echo "Note: Using Wayland session autostart via XDG instead of systemd service"
     
-    sudo tee /etc/systemd/system/kiwy-player.service > /dev/null << EOF
+    # If systemd service exists from previous installation, disable it
-[Unit]
+    if sudo test -f /etc/systemd/system/kiwy-player.service 2>/dev/null; then
-Description=Kiwy Signage Player
+        echo "Disabling old systemd service in favor of Wayland session..."
-After=multi-user.target graphical.target display-manager.service
+        sudo systemctl disable kiwy-player.service 2>/dev/null || true
-
+        echo "✓ Old systemd service disabled"
-[Service]
+    fi
-Type=simple
-User=$ACTUAL_USER
-Environment="DISPLAY=:0"
-Environment="XAUTHORITY=$ACTUAL_HOME/.Xauthority"
-WorkingDirectory=$SCRIPT_DIR
-ExecStart=/bin/bash $SCRIPT_DIR/start.sh
-Restart=on-failure
-RestartSec=10
-StandardOutput=journal
-StandardError=journal
-
-[Install]
-WantedBy=multi-user.target
-EOF
-    
-    sudo systemctl daemon-reload
-    sudo systemctl enable kiwy-player.service
-    echo "✓ System-wide systemd service created and enabled"
     
     # Method 4: Cron job for fallback (starts at reboot)
     echo "Setting up cron fallback..."

src/main.py

@@ -15,13 +15,17 @@ from concurrent.futures import ThreadPoolExecutor
 os.environ['KIVY_VIDEO'] = 'ffpyplayer'  # Use ffpyplayer as video provider
 os.environ['FFPYPLAYER_CODECS'] = 'h264,h265,vp9,vp8'  # Support common codecs
 os.environ['SDL_VIDEO_ALLOW_SCREENSAVER'] = '0'  # Prevent screen saver
+os.environ['SDL_VIDEODRIVER'] = 'wayland,x11,dummy'  # Prefer Wayland, fallback to X11, then dummy
+os.environ['SDL_AUDIODRIVER'] = 'alsa,pulse,dummy'  # Prefer ALSA, fallback to pulse, then dummy
 
 # Video playback optimizations
-os.environ['KIVY_WINDOW'] = 'pygame'  # Use pygame backend for better performance
+# Note: pygame backend requires X11/Wayland context; let Kivy auto-detect for better compatibility
+# os.environ['KIVY_WINDOW'] = 'pygame'  # Use pygame backend for better performance
 os.environ['KIVY_AUDIO'] = 'ffpyplayer'  # Use ffpyplayer for audio
 os.environ['KIVY_GL_BACKEND'] = 'gl'  # Use OpenGL backend
-os.environ['FFMPEG_THREADS'] = '4'  # Use 4 threads for ffmpeg decoding
+os.environ['KIVY_INPUTPROVIDERS'] = 'wayland,x11'  # Only use Wayland and X11 input providers, skip problematic ones
-os.environ['LIBPLAYER_BUFFER'] = '2048000'  # 2MB buffer for smooth playback
+os.environ['FFMPEG_THREADS'] = '2'  # Use 2 threads for ffmpeg decoding (Raspberry Pi has limited resources)
+os.environ['LIBPLAYER_BUFFER'] = '1048576'  # 1MB buffer (reduced from 2MB to save memory)
 os.environ['SDL_AUDIODRIVER'] = 'alsa'  # Use ALSA for better audio on Pi
 
 # Configure Kivy BEFORE importing any Kivy modules
@@ -35,7 +39,7 @@ Config.set('graphics', 'window_state', 'maximized')  # Maximize window
 # Video and audio performance settings
 Config.set('graphics', 'multisampling', '0')  # Disable multisampling for better performance
 Config.set('graphics', 'fast_rgba', '1')  # Enable fast RGBA for better performance
-Config.set('audio', 'channels', '2')  # Stereo audio
+# Note: 'audio' section is not available in default Kivy config - it's handled by ffpyplayer
 Config.set('kivy', 'log_level', 'warning')  # Reduce logging overhead
 
 from kivy.app import App
@@ -486,8 +490,12 @@ class CustomVKeyboard(VKeyboard):
             
             Logger.info("CustomVKeyboard: Wrapped in container with close button")
 
-# Set the custom keyboard factory
+# Set the custom keyboard factory (only if Window is properly initialized)
-Window.set_vkeyboard_class(CustomVKeyboard)
+if Window is not None:
+    try:
+        Window.set_vkeyboard_class(CustomVKeyboard)
+    except Exception as e:
+        Logger.warning(f"CustomVKeyboard: Could not set custom keyboard: {e}")
 
 class ExitPasswordPopup(Popup):
     def __init__(self, player_instance, was_paused=False, **kwargs):
@@ -958,7 +966,7 @@ class SignagePlayer(Widget):
                 # Wayland-specific commands
                 
                 # Method 1: Use wlopm (Wayland output power management)
-                os.system('wlopm --on \* 2>/dev/null || true')
+                os.system('wlopm --on \\* 2>/dev/null || true')
                 
                 # Method 2: Use wlr-randr for wlroots compositors
                 os.system('wlr-randr --output HDMI-A-1 --on 2>/dev/null || true')
@@ -1837,18 +1845,22 @@ class SignagePlayerApp(App):
         else:
             Logger.info(f"SignagePlayerApp: Using auto resolution (no constraint)")
         
-        # Force fullscreen and borderless
+        # Force fullscreen and borderless (only if Window is available)
+        if Window is not None:
             Window.fullscreen = True
             Window.borderless = True
             Logger.info(f"SignagePlayerApp: Screen size: {Window.size}")
             Logger.info(f"SignagePlayerApp: Available screen size: {Window.system_size if hasattr(Window, 'system_size') else 'N/A'}")
             # Hide cursor after 3 seconds of inactivity
             Clock.schedule_once(self.hide_cursor, 3)
+        else:
+            Logger.critical("SignagePlayerApp: Window is None - display server not available")
         return SignagePlayer()
     
     def hide_cursor(self, dt):
         """Hide the mouse cursor"""
         try:
+            if Window is not None:
                 Window.show_cursor = False
         except:
             pass  # Some platforms don't support cursor hiding
@@ -1856,13 +1868,16 @@ class SignagePlayerApp(App):
     def on_start(self):
         # Setup asyncio event loop for Kivy integration
         try:
-            loop = asyncio.get_event_loop()
+            # Use get_running_loop in Python 3.7+ to avoid deprecation warning
-            Logger.info("SignagePlayerApp: Asyncio event loop integrated with Kivy")
+            try:
+                loop = asyncio.get_running_loop()
             except RuntimeError:
-            # Create new event loop if none exists
+                # No running loop, create a new one
                 loop = asyncio.new_event_loop()
                 asyncio.set_event_loop(loop)
-            Logger.info("SignagePlayerApp: New asyncio event loop created")
+            Logger.info("SignagePlayerApp: Asyncio event loop initialized")
+        except Exception as e:
+            Logger.warning(f"SignagePlayerApp: Could not setup asyncio loop: {e}")
         
         # Schedule periodic async task processing
         Clock.schedule_interval(self._process_async_tasks, 0.1)  # Process every 100ms

start.sh

@@ -14,11 +14,79 @@ HEARTBEAT_FILE="$SCRIPT_DIR/.player_heartbeat"
 STOP_FLAG_FILE="$SCRIPT_DIR/.player_stop_requested"
 LOG_FILE="$SCRIPT_DIR/player_watchdog.log"
 
-# Function to log messages
+# Ensure log file is writable
+if [ ! -w "$(dirname "$LOG_FILE")" ]; then
+    LOG_FILE="/tmp/kivy-player-watchdog.log"
+fi
+
+# Function to log messages (MUST be defined before use)
 log_message() {
-    echo "[$(date '+%Y-%m-%d %H:%M:%S')] $1" | tee -a "$LOG_FILE"
+    local msg="[$(date '+%Y-%m-%d %H:%M:%S')] $1"
+    echo "$msg"
+    # Try to write to log file, ignore errors if permission denied
+    echo "$msg" >> "$LOG_FILE" 2>/dev/null || true
 }
 
+# Load user's environment from systemd user session (most reliable method)
+# This ensures we get the proper DISPLAY/WAYLAND_DISPLAY and session variables
+load_user_environment() {
+    # Try to get environment from active user session via systemctl
+    local user_env
+    if command -v systemctl &>/dev/null; then
+        user_env=$(systemctl --user show-environment 2>/dev/null)
+        if [ -n "$user_env" ]; then
+            # Extract display-related variables
+            echo "$user_env" | grep -E '^(DISPLAY|WAYLAND_DISPLAY|XDG_RUNTIME_DIR|DBUS_SESSION_BUS_ADDRESS)=' | while read -r line; do
+                export "$line"
+            done
+            log_message "Loaded user environment from systemctl --user"
+            return 0
+        fi
+    fi
+    
+    # Fallback: detect display manually
+    log_message "Falling back to manual display detection..."
+    
+    if [ -z "$DISPLAY" ] && [ -z "$WAYLAND_DISPLAY" ]; then
+        # Try to detect Wayland display
+        if [ -S "/run/user/$(id -u)/wayland-0" ]; then
+            export WAYLAND_DISPLAY=wayland-0
+            log_message "Detected Wayland display: $WAYLAND_DISPLAY"
+        # Try to detect X11 display
+        elif [ -S "/tmp/.X11-unix/X0" ]; then
+            export DISPLAY=:0
+            log_message "Detected X11 display: $DISPLAY"
+        else
+            # Wait for display to come up (useful for systemd or delayed starts)
+            log_message "Waiting for display server to be ready (up to 30 seconds)..."
+            for i in {1..30}; do
+                sleep 1
+                if [ -S "/run/user/$(id -u)/wayland-0" ] 2>/dev/null; then
+                    export WAYLAND_DISPLAY=wayland-0
+                    log_message "Display server detected on attempt $i: Wayland"
+                    return 0
+                elif [ -S "/tmp/.X11-unix/X0" ] 2>/dev/null; then
+                    export DISPLAY=:0
+                    log_message "Display server detected on attempt $i: X11"
+                    return 0
+                fi
+            done
+        fi
+    fi
+    
+    # Verify we have a display now
+    if [ -z "$DISPLAY" ] && [ -z "$WAYLAND_DISPLAY" ]; then
+        log_message "WARNING: No display server detected. This may cause graphics issues."
+        return 1
+    fi
+    
+    log_message "Display environment ready: DISPLAY=$DISPLAY WAYLAND_DISPLAY=$WAYLAND_DISPLAY"
+    return 0
+}
+
+# Load the user environment early
+load_user_environment
+
 # Function to check if player is healthy
 check_health() {
     # Check if heartbeat file exists and is recent (within last 60 seconds)