fix gnome tiling keymapping

modules/desktop.nix

@@ -4,6 +4,10 @@ with lib;
 
 let
   cfg = config.desktop-custom;
+  # Import gvariant for dconf types
+  mkTuple = lib.gvariant.mkTuple;
+  mkUint32 = lib.gvariant.mkUint32;
+  mkEmptyArray = lib.gvariant.mkEmptyArray;
 in
 
 {
@@ -80,5 +84,42 @@ in
     environment.systemPackages = with pkgs; [
       hicolor-icon-theme  # Fallback icon theme
     ];
+
+    # System-level dconf configuration with lockAll to prevent overrides
+    # This ensures keybindings persist after suspend/resume
+    programs.dconf = {
+      enable = true;
+      profiles.user.databases = [{
+        lockAll = true;  # Prevents GNOME and extensions from changing these settings
+        settings = {
+          # Mutter keybindings - window tiling (vim-style hjkl)
+          "org/gnome/mutter/keybindings" = {
+            toggle-tiled-left = [ "<Super>h" ];   # Tile left: Super+h
+            toggle-tiled-right = [ "<Super>l" ];  # Tile right: Super+l
+          };
+
+          # Window manager keybindings (vim-style hjkl)
+          "org/gnome/desktop/wm/keybindings" = {
+            # Window maximize/restore
+            maximize = [ "<Super>k" ];            # Maximize: Super+k
+            unmaximize = [ "<Super>j" ];          # Restore: Super+j
+
+            # Move window between monitors
+            move-to-monitor-left = [ "<Super><Shift>h" ];   # Move left: Super+Shift+h
+            move-to-monitor-right = [ "<Super><Shift>l" ];  # Move right: Super+Shift+l
+            move-to-monitor-up = [ "<Super><Shift>k" ];     # Move up: Super+Shift+k
+            move-to-monitor-down = [ "<Super><Shift>j" ];   # Move down: Super+Shift+j
+
+            # Disable conflicting keybindings
+            minimize = mkEmptyArray "s";  # Disable Super+h conflict (was minimize window)
+          };
+
+          # Disable screen lock on Super+L to free it for tiling right
+          "org/gnome/settings-daemon/plugins/media-keys" = {
+            screensaver = mkEmptyArray "s";  # Remove Super+L screen lock binding
+          };
+        };
+      }];
+    };
   };
 }

modules/gnome.nix

@@ -120,27 +120,9 @@ in
       tile-bottomright-quarter = [ "<Super>g" ];  # Bottom-right: Super+G
     };
 
-    # Mutter keybindings - window tiling (vim-style hjkl)
+    # NOTE: vim-style hjkl keybindings (Super+h/j/k/l) are configured at the
-    "org/gnome/mutter/keybindings" = {
+    # system level in desktop.nix with lockAll = true to prevent them from
-      toggle-tiled-left = [ "<Super>h" ];   # Tile left: Super+h (replaces Super+Left)
+    # being overridden after suspend/resume or by GNOME extensions
-      toggle-tiled-right = [ "<Super>l" ];  # Tile right: Super+l (replaces Super+Right)
-    };
-
-    # Window manager keybindings (vim-style hjkl)
-    "org/gnome/desktop/wm/keybindings" = {
-      # Window maximize/restore
-      maximize = [ "<Super>k" ];            # Maximize: Super+k (replaces Super+Up)
-      unmaximize = [ "<Super>j" ];          # Restore: Super+j (replaces Super+Down)
-
-      # Move window between monitors
-      move-to-monitor-left = [ "<Super><Shift>h" ];   # Move left: Super+Shift+h
-      move-to-monitor-right = [ "<Super><Shift>l" ];  # Move right: Super+Shift+l
-      move-to-monitor-up = [ "<Super><Shift>k" ];     # Move up: Super+Shift+k
-      move-to-monitor-down = [ "<Super><Shift>j" ];   # Move down: Super+Shift+j
-
-      # Disable conflicting keybindings
-      minimize = [];  # Disable Super+h conflict
-    };
 
   };