diff --git a/esphome/components/api/api_connection.cpp b/esphome/components/api/api_connection.cpp
index bd438265d4..195fcab0ab 100644
--- a/esphome/components/api/api_connection.cpp
+++ b/esphome/components/api/api_connection.cpp
@@ -179,6 +179,7 @@ void APIConnection::loop() {
       SubscribeHomeAssistantStateResponse resp;
       resp.entity_id = it.entity_id;
       resp.attribute = it.attribute.value();
+      resp.once = it.once;
       if (this->send_subscribe_home_assistant_state_response(resp)) {
         state_subs_at_++;
       }
diff --git a/esphome/components/lvgl/__init__.py b/esphome/components/lvgl/__init__.py
index 7c51d9c70d..ea020435dc 100644
--- a/esphome/components/lvgl/__init__.py
+++ b/esphome/components/lvgl/__init__.py
@@ -266,7 +266,10 @@ async def to_code(config):
         await add_top_layer(config)
         await msgboxes_to_code(config)
         await disp_update(f"{lv_component}->get_disp()", config)
-        Widget.set_completed()
+    # At this point only the setup code should be generated
+    assert LvContext.added_lambda_count == 1
+    Widget.set_completed()
+    async with LvContext(lv_component):
         await generate_triggers(lv_component)
         for conf in config.get(CONF_ON_IDLE, ()):
             templ = await cg.templatable(conf[CONF_TIMEOUT], [], cg.uint32)
diff --git a/esphome/components/lvgl/automation.py b/esphome/components/lvgl/automation.py
index a39f589136..efcac977ab 100644
--- a/esphome/components/lvgl/automation.py
+++ b/esphome/components/lvgl/automation.py
@@ -5,6 +5,7 @@ from esphome import automation
 import esphome.codegen as cg
 import esphome.config_validation as cv
 from esphome.const import CONF_ID, CONF_TIMEOUT
+from esphome.cpp_generator import RawExpression
 from esphome.cpp_types import nullptr
 
 from .defines import (
@@ -26,6 +27,7 @@ from .lvcode import (
     add_line_marks,
     lv,
     lv_add,
+    lv_expr,
     lv_obj,
     lvgl_comp,
 )
@@ -38,7 +40,13 @@ from .types import (
     lv_disp_t,
     lv_obj_t,
 )
-from .widgets import Widget, get_widgets, lv_scr_act, set_obj_properties
+from .widgets import (
+    Widget,
+    get_widgets,
+    lv_scr_act,
+    set_obj_properties,
+    wait_for_widgets,
+)
 
 
 async def action_to_code(
@@ -48,10 +56,12 @@ async def action_to_code(
     template_arg,
     args,
 ):
+    await wait_for_widgets()
     async with LambdaContext(parameters=args, where=action_id) as context:
+        with LvConditional(lv_expr.is_pre_initialise()):
+            context.add(RawExpression("return"))
         for widget in widgets:
-            with LvConditional(widget.obj != nullptr):
-                await action(widget)
+            await action(widget)
     var = cg.new_Pvariable(action_id, template_arg, await context.get_lambda())
     return var
 
diff --git a/esphome/components/lvgl/binary_sensor/__init__.py b/esphome/components/lvgl/binary_sensor/__init__.py
index 8789a06375..56984405aa 100644
--- a/esphome/components/lvgl/binary_sensor/__init__.py
+++ b/esphome/components/lvgl/binary_sensor/__init__.py
@@ -10,7 +10,7 @@ from ..defines import CONF_LVGL_ID, CONF_WIDGET
 from ..lvcode import EVENT_ARG, LambdaContext, LvContext
 from ..schemas import LVGL_SCHEMA
 from ..types import LV_EVENT, lv_pseudo_button_t
-from ..widgets import Widget, get_widgets
+from ..widgets import Widget, get_widgets, wait_for_widgets
 
 CONFIG_SCHEMA = (
     binary_sensor_schema(BinarySensor)
@@ -29,6 +29,7 @@ async def to_code(config):
     widget = await get_widgets(config, CONF_WIDGET)
     widget = widget[0]
     assert isinstance(widget, Widget)
+    await wait_for_widgets()
     async with LambdaContext(EVENT_ARG) as pressed_ctx:
         pressed_ctx.add(sensor.publish_state(widget.is_pressed()))
     async with LvContext(paren) as ctx:
diff --git a/esphome/components/lvgl/light/__init__.py b/esphome/components/lvgl/light/__init__.py
index 27c160dff6..a0eeded349 100644
--- a/esphome/components/lvgl/light/__init__.py
+++ b/esphome/components/lvgl/light/__init__.py
@@ -8,7 +8,7 @@ from ..defines import CONF_LVGL_ID
 from ..lvcode import LvContext
 from ..schemas import LVGL_SCHEMA
 from ..types import LvType, lvgl_ns
-from ..widgets import get_widgets
+from ..widgets import get_widgets, wait_for_widgets
 
 lv_led_t = LvType("lv_led_t")
 LVLight = lvgl_ns.class_("LVLight", LightOutput)
@@ -28,5 +28,6 @@ async def to_code(config):
     paren = await cg.get_variable(config[CONF_LVGL_ID])
     widget = await get_widgets(config, CONF_LED)
     widget = widget[0]
+    await wait_for_widgets()
     async with LvContext(paren) as ctx:
         ctx.add(var.set_obj(widget.obj))
diff --git a/esphome/components/lvgl/lvcode.py b/esphome/components/lvgl/lvcode.py
index 6d7e364e5d..8d029ce0ca 100644
--- a/esphome/components/lvgl/lvcode.py
+++ b/esphome/components/lvgl/lvcode.py
@@ -176,6 +176,8 @@ class LvContext(LambdaContext):
     Code generation into the LVGL initialisation code (called in `setup()`)
     """
 
+    added_lambda_count = 0
+
     def __init__(self, lv_component, args=None):
         self.args = args or LVGL_COMP_ARG
         super().__init__(parameters=self.args)
@@ -183,6 +185,7 @@ class LvContext(LambdaContext):
 
     async def add_init_lambda(self):
         cg.add(self.lv_component.add_init_lambda(await self.get_lambda()))
+        LvContext.added_lambda_count += 1
 
     async def __aexit__(self, exc_type, exc_val, exc_tb):
         await super().__aexit__(exc_type, exc_val, exc_tb)
diff --git a/esphome/components/lvgl/lvgl_esphome.cpp b/esphome/components/lvgl/lvgl_esphome.cpp
index 92f7a880c3..6882986e7c 100644
--- a/esphome/components/lvgl/lvgl_esphome.cpp
+++ b/esphome/components/lvgl/lvgl_esphome.cpp
@@ -294,6 +294,13 @@ void LvglComponent::loop() {
   }
   lv_timer_handler_run_in_period(5);
 }
+bool lv_is_pre_initialise() {
+  if (!lv_is_initialized()) {
+    ESP_LOGE(TAG, "LVGL call before component is initialised");
+    return true;
+  }
+  return false;
+}
 
 #ifdef USE_LVGL_IMAGE
 lv_img_dsc_t *lv_img_from(image::Image *src, lv_img_dsc_t *img_dsc) {
diff --git a/esphome/components/lvgl/lvgl_esphome.h b/esphome/components/lvgl/lvgl_esphome.h
index 3a3d1aa6c5..df3d4aa68c 100644
--- a/esphome/components/lvgl/lvgl_esphome.h
+++ b/esphome/components/lvgl/lvgl_esphome.h
@@ -40,6 +40,7 @@ namespace lvgl {
 
 extern lv_event_code_t lv_api_event;     // NOLINT
 extern lv_event_code_t lv_update_event;  // NOLINT
+extern bool lv_is_pre_initialise();
 #ifdef USE_LVGL_COLOR
 inline lv_color_t lv_color_from(Color color) { return lv_color_make(color.red, color.green, color.blue); }
 #endif  // USE_LVGL_COLOR
diff --git a/esphome/components/lvgl/number/__init__.py b/esphome/components/lvgl/number/__init__.py
index 6336bb0632..3e1ede0dec 100644
--- a/esphome/components/lvgl/number/__init__.py
+++ b/esphome/components/lvgl/number/__init__.py
@@ -16,7 +16,7 @@ from ..lvcode import (
 )
 from ..schemas import LVGL_SCHEMA
 from ..types import LV_EVENT, LvNumber, lvgl_ns
-from ..widgets import get_widgets
+from ..widgets import get_widgets, wait_for_widgets
 
 LVGLNumber = lvgl_ns.class_("LVGLNumber", number.Number)
 
@@ -44,6 +44,7 @@ async def to_code(config):
         step=widget.get_step(),
     )
 
+    await wait_for_widgets()
     async with LambdaContext([(cg.float_, "v")]) as control:
         await widget.set_property(
             "value", MockObj("v") * MockObj(widget.get_scale()), config[CONF_ANIMATED]
diff --git a/esphome/components/lvgl/select/__init__.py b/esphome/components/lvgl/select/__init__.py
index b55bde13bc..e77d0cfb32 100644
--- a/esphome/components/lvgl/select/__init__.py
+++ b/esphome/components/lvgl/select/__init__.py
@@ -15,7 +15,7 @@ from ..lvcode import (
 )
 from ..schemas import LVGL_SCHEMA
 from ..types import LV_EVENT, LvSelect, lvgl_ns
-from ..widgets import get_widgets
+from ..widgets import get_widgets, wait_for_widgets
 
 LVGLSelect = lvgl_ns.class_("LVGLSelect", select.Select)
 
@@ -37,6 +37,7 @@ async def to_code(config):
     options = widget.config.get(CONF_OPTIONS, [])
     selector = await select.new_select(config, options=options)
     paren = await cg.get_variable(config[CONF_LVGL_ID])
+    await wait_for_widgets()
     async with LambdaContext(EVENT_ARG) as pub_ctx:
         pub_ctx.add(selector.publish_index(widget.get_value()))
     async with LambdaContext([(cg.uint16, "v")]) as control:
diff --git a/esphome/components/lvgl/sensor/__init__.py b/esphome/components/lvgl/sensor/__init__.py
index 82e21d5e95..a2a2298c27 100644
--- a/esphome/components/lvgl/sensor/__init__.py
+++ b/esphome/components/lvgl/sensor/__init__.py
@@ -14,7 +14,7 @@ from ..lvcode import (
 )
 from ..schemas import LVGL_SCHEMA
 from ..types import LV_EVENT, LvNumber
-from ..widgets import Widget, get_widgets
+from ..widgets import Widget, get_widgets, wait_for_widgets
 
 CONFIG_SCHEMA = (
     sensor_schema(Sensor)
@@ -33,6 +33,7 @@ async def to_code(config):
     widget = await get_widgets(config, CONF_WIDGET)
     widget = widget[0]
     assert isinstance(widget, Widget)
+    await wait_for_widgets()
     async with LambdaContext(EVENT_ARG) as lamb:
         lv_add(sensor.publish_state(widget.get_value()))
     async with LvContext(paren, LVGL_COMP_ARG):
diff --git a/esphome/components/lvgl/switch/__init__.py b/esphome/components/lvgl/switch/__init__.py
index 957fce17ff..f855c2a034 100644
--- a/esphome/components/lvgl/switch/__init__.py
+++ b/esphome/components/lvgl/switch/__init__.py
@@ -16,7 +16,7 @@ from ..lvcode import (
 )
 from ..schemas import LVGL_SCHEMA
 from ..types import LV_EVENT, LV_STATE, lv_pseudo_button_t, lvgl_ns
-from ..widgets import get_widgets
+from ..widgets import get_widgets, wait_for_widgets
 
 LVGLSwitch = lvgl_ns.class_("LVGLSwitch", Switch)
 CONFIG_SCHEMA = (
@@ -35,6 +35,7 @@ async def to_code(config):
     paren = await cg.get_variable(config[CONF_LVGL_ID])
     widget = await get_widgets(config, CONF_WIDGET)
     widget = widget[0]
+    await wait_for_widgets()
     async with LambdaContext(EVENT_ARG) as checked_ctx:
         checked_ctx.add(switch.publish_state(widget.get_value()))
     async with LambdaContext([(cg.bool_, "v")]) as control:
diff --git a/esphome/components/lvgl/text/__init__.py b/esphome/components/lvgl/text/__init__.py
index 9ee494d8a0..56fa42e131 100644
--- a/esphome/components/lvgl/text/__init__.py
+++ b/esphome/components/lvgl/text/__init__.py
@@ -15,7 +15,7 @@ from ..lvcode import (
 )
 from ..schemas import LVGL_SCHEMA
 from ..types import LV_EVENT, LvText, lvgl_ns
-from ..widgets import get_widgets
+from ..widgets import get_widgets, wait_for_widgets
 
 LVGLText = lvgl_ns.class_("LVGLText", text.Text)
 
@@ -32,6 +32,7 @@ async def to_code(config):
     paren = await cg.get_variable(config[CONF_LVGL_ID])
     widget = await get_widgets(config, CONF_WIDGET)
     widget = widget[0]
+    await wait_for_widgets()
     async with LambdaContext([(cg.std_string, "text_value")]) as control:
         await widget.set_property("text", "text_value.c_str())")
         lv.event_send(widget.obj, API_EVENT, None)
diff --git a/esphome/components/lvgl/text_sensor/__init__.py b/esphome/components/lvgl/text_sensor/__init__.py
index cab715dce0..ae39eec291 100644
--- a/esphome/components/lvgl/text_sensor/__init__.py
+++ b/esphome/components/lvgl/text_sensor/__init__.py
@@ -10,7 +10,7 @@ from ..defines import CONF_LVGL_ID, CONF_WIDGET
 from ..lvcode import API_EVENT, EVENT_ARG, UPDATE_EVENT, LambdaContext, LvContext
 from ..schemas import LVGL_SCHEMA
 from ..types import LV_EVENT, LvText
-from ..widgets import get_widgets
+from ..widgets import get_widgets, wait_for_widgets
 
 CONFIG_SCHEMA = (
     text_sensor_schema(TextSensor)
@@ -28,6 +28,7 @@ async def to_code(config):
     paren = await cg.get_variable(config[CONF_LVGL_ID])
     widget = await get_widgets(config, CONF_WIDGET)
     widget = widget[0]
+    await wait_for_widgets()
     async with LambdaContext(EVENT_ARG) as pressed_ctx:
         pressed_ctx.add(sensor.publish_state(widget.get_value()))
     async with LvContext(paren) as ctx:
diff --git a/esphome/components/lvgl/widgets/__init__.py b/esphome/components/lvgl/widgets/__init__.py
index 4abb25c61d..17d73c1714 100644
--- a/esphome/components/lvgl/widgets/__init__.py
+++ b/esphome/components/lvgl/widgets/__init__.py
@@ -223,6 +223,19 @@ async def get_widget_(wid: Widget):
     return await FakeAwaitable(get_widget_generator(wid))
 
 
+def widgets_wait_generator():
+    while True:
+        if Widget.widgets_completed:
+            return
+        yield
+
+
+async def wait_for_widgets():
+    if Widget.widgets_completed:
+        return
+    await FakeAwaitable(widgets_wait_generator())
+
+
 async def get_widgets(config: Union[dict, list], id: str = CONF_ID) -> list[Widget]:
     if not config:
         return []
diff --git a/esphome/components/lvgl/widgets/line.py b/esphome/components/lvgl/widgets/line.py
index 8ce4b1965f..4c6439fde4 100644
--- a/esphome/components/lvgl/widgets/line.py
+++ b/esphome/components/lvgl/widgets/line.py
@@ -3,7 +3,7 @@ import functools
 import esphome.codegen as cg
 import esphome.config_validation as cv
 
-from ..defines import CONF_MAIN, literal
+from ..defines import CONF_MAIN
 from ..lvcode import lv
 from ..types import LvType
 from . import Widget, WidgetType
@@ -38,13 +38,15 @@ LINE_SCHEMA = {
 
 class LineType(WidgetType):
     def __init__(self):
-        super().__init__(CONF_LINE, LvType("lv_line_t"), (CONF_MAIN,), LINE_SCHEMA)
+        super().__init__(
+            CONF_LINE, LvType("lv_line_t"), (CONF_MAIN,), LINE_SCHEMA, modify_schema={}
+        )
 
     async def to_code(self, w: Widget, config):
         """For a line object, create and add the points"""
-        data = literal(config[CONF_POINTS])
-        points = cg.static_const_array(config[CONF_POINT_LIST_ID], data)
-        lv.line_set_points(w.obj, points, len(data))
+        if data := config.get(CONF_POINTS):
+            points = cg.static_const_array(config[CONF_POINT_LIST_ID], data)
+            lv.line_set_points(w.obj, points, len(data))
 
 
 line_spec = LineType()
diff --git a/esphome/components/lvgl/widgets/msgbox.py b/esphome/components/lvgl/widgets/msgbox.py
index 63c4326c7c..c377af6bde 100644
--- a/esphome/components/lvgl/widgets/msgbox.py
+++ b/esphome/components/lvgl/widgets/msgbox.py
@@ -13,7 +13,7 @@ from ..defines import (
     TYPE_FLEX,
     literal,
 )
-from ..helpers import add_lv_use
+from ..helpers import add_lv_use, lvgl_components_required
 from ..lv_validation import lv_bool, lv_pct, lv_text
 from ..lvcode import (
     EVENT_ARG,
@@ -72,6 +72,7 @@ async def msgbox_to_code(conf):
         *buttonmatrix_spec.get_uses(),
         *button_spec.get_uses(),
     )
+    lvgl_components_required.add("BUTTONMATRIX")
     messagebox_id = conf[CONF_ID]
     outer = lv_Pvariable(lv_obj_t, messagebox_id.id)
     buttonmatrix = new_Pvariable(
diff --git a/esphome/const.py b/esphome/const.py
index f99d442be3..b27949bf29 100644
--- a/esphome/const.py
+++ b/esphome/const.py
@@ -1,6 +1,6 @@
 """Constants used by esphome."""
 
-__version__ = "2024.8.0"
+__version__ = "2024.8.1"
 
 ALLOWED_NAME_CHARS = "abcdefghijklmnopqrstuvwxyz0123456789-_"
 VALID_SUBSTITUTIONS_CHARACTERS = (
diff --git a/esphome/writer.py b/esphome/writer.py
index c6111cbe3f..57435d3463 100644
--- a/esphome/writer.py
+++ b/esphome/writer.py
@@ -106,6 +106,8 @@ def storage_should_clean(old: StorageJSON, new: StorageJSON) -> bool:
         return True
     if old.build_path != new.build_path:
         return True
+    if old.loaded_integrations != new.loaded_integrations:
+        return True
     return False
 
 
@@ -117,7 +119,9 @@ def update_storage_json():
         return
 
     if storage_should_clean(old, new):
-        _LOGGER.info("Core config or version changed, cleaning build files...")
+        _LOGGER.info(
+            "Core config, version or integrations changed, cleaning build files..."
+        )
         clean_build()
 
     new.save(path)
diff --git a/tests/components/lvgl/lvgl-package.yaml b/tests/components/lvgl/lvgl-package.yaml
index 800d6eff27..1479ce7358 100644
--- a/tests/components/lvgl/lvgl-package.yaml
+++ b/tests/components/lvgl/lvgl-package.yaml
@@ -379,6 +379,7 @@ lvgl:
                     format: "bar value %f"
                     args: [x]
         - line:
+            id: lv_line_id
             align: center
             points:
               - 5, 5
@@ -387,7 +388,10 @@ lvgl:
               - 180, 60
               - 240, 10
             on_click:
-              lvgl.page.next:
+              - lvgl.widget.update:
+                  id: lv_line_id
+                  line_color: 0xFFFF
+              - lvgl.page.next:
         - switch:
             align: right_mid
         - checkbox: