diff --git a/homeassistant/components/cambridge_audio/manifest.json b/homeassistant/components/cambridge_audio/manifest.json
index edacd17f54d..c359ca14a21 100644
--- a/homeassistant/components/cambridge_audio/manifest.json
+++ b/homeassistant/components/cambridge_audio/manifest.json
@@ -7,6 +7,6 @@
   "integration_type": "device",
   "iot_class": "local_push",
   "loggers": ["aiostreammagic"],
-  "requirements": ["aiostreammagic==2.8.4"],
+  "requirements": ["aiostreammagic==2.8.5"],
   "zeroconf": ["_stream-magic._tcp.local.", "_smoip._tcp.local."]
 }
diff --git a/homeassistant/components/cambridge_audio/select.py b/homeassistant/components/cambridge_audio/select.py
index ca6eebdec6b..c99abc853e5 100644
--- a/homeassistant/components/cambridge_audio/select.py
+++ b/homeassistant/components/cambridge_audio/select.py
@@ -51,8 +51,13 @@ CONTROL_ENTITIES: tuple[CambridgeAudioSelectEntityDescription, ...] = (
     CambridgeAudioSelectEntityDescription(
         key="display_brightness",
         translation_key="display_brightness",
-        options=[x.value for x in DisplayBrightness],
+        options=[
+            DisplayBrightness.BRIGHT.value,
+            DisplayBrightness.DIM.value,
+            DisplayBrightness.OFF.value,
+        ],
         entity_category=EntityCategory.CONFIG,
+        load_fn=lambda client: client.display.brightness != DisplayBrightness.NONE,
         value_fn=lambda client: client.display.brightness,
         set_value_fn=lambda client, value: client.set_display_brightness(
             DisplayBrightness(value)
diff --git a/requirements_all.txt b/requirements_all.txt
index a68fc1a828c..32f111781da 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -381,7 +381,7 @@ aiosolaredge==0.2.0
 aiosteamist==1.0.0
 
 # homeassistant.components.cambridge_audio
-aiostreammagic==2.8.4
+aiostreammagic==2.8.5
 
 # homeassistant.components.switcher_kis
 aioswitcher==4.4.0
diff --git a/requirements_test_all.txt b/requirements_test_all.txt
index 7501398f4d3..237c70c8afb 100644
--- a/requirements_test_all.txt
+++ b/requirements_test_all.txt
@@ -363,7 +363,7 @@ aiosolaredge==0.2.0
 aiosteamist==1.0.0
 
 # homeassistant.components.cambridge_audio
-aiostreammagic==2.8.4
+aiostreammagic==2.8.5
 
 # homeassistant.components.switcher_kis
 aioswitcher==4.4.0