diff --git a/CHANGELOG.md b/CHANGELOG.md
index b9047f24..1fcf7673 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,9 +5,12 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased ]
+
+### Added
+- Add panel overdrive support (autodetects if supported)
+- Add detection of dgpu_disable and egpu_enable for diagnostic
 ### Changed
 - Fixed save and restore of multizone LED settings
-- Add panel overdrive support (autodetects if supported)
 
 ## [4.2.0] - 2022-07-16
 ### Added
diff --git a/Cargo.lock b/Cargo.lock
index 6be3078d..1c578a21 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -33,7 +33,7 @@ dependencies = [
 
 [[package]]
 name = "asusctl"
-version = "4.0.7"
+version = "4.2.1"
 dependencies = [
  "daemon",
  "gif",
@@ -278,7 +278,7 @@ dependencies = [
 
 [[package]]
 name = "daemon"
-version = "4.2.0"
+version = "4.2.1"
 dependencies = [
  "async-trait",
  "env_logger",
@@ -1034,7 +1034,7 @@ dependencies = [
 
 [[package]]
 name = "rog_aura"
-version = "1.1.1"
+version = "1.1.2"
 dependencies = [
  "serde",
  "serde_derive",
@@ -1067,7 +1067,7 @@ dependencies = [
 
 [[package]]
 name = "rog_supported"
-version = "4.0.0"
+version = "4.2.0"
 dependencies = [
  "rog_aura",
  "serde",
diff --git a/asusctl/Cargo.toml b/asusctl/Cargo.toml
index 735a0cf3..1a72d092 100644
--- a/asusctl/Cargo.toml
+++ b/asusctl/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "asusctl"
-version = "4.0.7"
+version = "4.2.1"
 authors = ["Luke D Jones <luke@ljones.dev>"]
 edition = "2018"
 
diff --git a/asusctl/src/main.rs b/asusctl/src/main.rs
index bfbe55bd..ed1d6c6a 100644
--- a/asusctl/src/main.rs
+++ b/asusctl/src/main.rs
@@ -709,8 +709,8 @@ fn handle_bios_option(
                 .collect();
 
             for line in usage.iter().filter(|line| {
-                line.contains("sound") && supported.post_sound_toggle
-                    || line.contains("GPU") && supported.dedicated_gfx_toggle
+                line.contains("sound") && supported.post_sound
+                    || line.contains("GPU") && supported.dedicated_gfx
                     || line.contains("panel") && supported.panel_overdrive
             }) {
                 println!("{}", line);
diff --git a/daemon/Cargo.toml b/daemon/Cargo.toml
index 296a31a9..94a14c83 100644
--- a/daemon/Cargo.toml
+++ b/daemon/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "daemon"
-version = "4.2.0"
+version = "4.2.1"
 license = "MPL-2.0"
 readme = "README.md"
 authors = ["Luke <luke@ljones.dev>"]
diff --git a/daemon/src/ctrl_aura/controller.rs b/daemon/src/ctrl_aura/controller.rs
index c08a88c0..b2dbdc9b 100644
--- a/daemon/src/ctrl_aura/controller.rs
+++ b/daemon/src/ctrl_aura/controller.rs
@@ -490,7 +490,7 @@ mod tests {
                 .set_effect(effect.clone())
                 .unwrap_err()
                 .to_string(),
-            "Aura efect not supported"
+            "Aura effect not supported"
         );
 
         effect.mode = AuraModeNum::Static;
@@ -500,7 +500,7 @@ mod tests {
                 .set_effect(effect.clone())
                 .unwrap_err()
                 .to_string(),
-            "Aura efect not supported"
+            "Aura effect not supported"
         );
 
         controller.supported_modes.multizone.push(AuraZone::Key2);
diff --git a/daemon/src/ctrl_aura/zbus.rs b/daemon/src/ctrl_aura/zbus.rs
index 16e23b7d..893c85e5 100644
--- a/daemon/src/ctrl_aura/zbus.rs
+++ b/daemon/src/ctrl_aura/zbus.rs
@@ -46,7 +46,7 @@ impl CtrlKbdLedZbus {
         &mut self,
         #[zbus(signal_context)] ctxt: SignalContext<'_>,
         enabled: Vec<AuraControl>,
-    ) {
+    ) -> zbus::fdo::Result<()> {
         let mut states = None;
         if let Ok(mut ctrl) = self.0.try_lock() {
             for s in enabled {
@@ -54,9 +54,10 @@ impl CtrlKbdLedZbus {
             }
             ctrl.config.write();
 
-            ctrl.set_power_states(&ctrl.config)
-                .map_err(|err| warn!("{}", err))
-                .ok();
+            ctrl.set_power_states(&ctrl.config).map_err(|e| {
+                warn!("{}", e);
+                e
+            })?;
 
             let set: Vec<AuraControl> = ctrl.config.enabled.iter().map(|v| *v).collect();
             states = Some(set);
@@ -67,13 +68,14 @@ impl CtrlKbdLedZbus {
                 .await
                 .unwrap_or_else(|err| warn!("{}", err));
         }
+        Ok(())
     }
 
     async fn set_leds_disabled(
         &mut self,
         #[zbus(signal_context)] ctxt: SignalContext<'_>,
         disabled: Vec<AuraControl>,
-    ) {
+    ) -> zbus::fdo::Result<()> {
         let mut states = None;
         if let Ok(mut ctrl) = self.0.try_lock() {
             for s in disabled {
@@ -81,9 +83,10 @@ impl CtrlKbdLedZbus {
             }
             ctrl.config.write();
 
-            ctrl.set_power_states(&ctrl.config)
-                .map_err(|err| warn!("{}", err))
-                .ok();
+            ctrl.set_power_states(&ctrl.config).map_err(|e| {
+                warn!("{}", e);
+                e
+            })?;
 
             let set: Vec<AuraControl> = ctrl.config.enabled.iter().map(|v| *v).collect();
             states = Some(set);
@@ -94,24 +97,22 @@ impl CtrlKbdLedZbus {
                 .await
                 .unwrap_or_else(|err| warn!("{}", err));
         }
+        Ok(())
     }
 
     async fn set_led_mode(
         &mut self,
         #[zbus(signal_context)] ctxt: SignalContext<'_>,
         effect: AuraEffect,
-    ) {
+    ) -> zbus::fdo::Result<()> {
         let mut led = None;
         if let Ok(mut ctrl) = self.0.try_lock() {
-            match ctrl.set_effect(effect) {
-                Ok(_) => {
-                    if let Some(mode) = ctrl.config.builtins.get(&ctrl.config.current_mode) {
-                        led = Some(mode.clone());
-                    }
-                }
-                Err(err) => {
-                    warn!("{}", err);
-                }
+            ctrl.set_effect(effect).map_err(|e| {
+                warn!("{}", e);
+                e
+            })?;
+            if let Some(mode) = ctrl.config.builtins.get(&ctrl.config.current_mode) {
+                led = Some(mode.clone());
             }
         }
         if let Some(led) = led {
@@ -119,13 +120,19 @@ impl CtrlKbdLedZbus {
                 .await
                 .unwrap_or_else(|err| warn!("{}", err));
         }
+        Ok(())
     }
 
-    async fn next_led_mode(&self, #[zbus(signal_context)] ctxt: SignalContext<'_>) {
+    async fn next_led_mode(
+        &self,
+        #[zbus(signal_context)] ctxt: SignalContext<'_>,
+    ) -> zbus::fdo::Result<()> {
         let mut led = None;
         if let Ok(mut ctrl) = self.0.lock() {
-            ctrl.toggle_mode(false)
-                .unwrap_or_else(|err| warn!("{}", err));
+            ctrl.toggle_mode(false).map_err(|e| {
+                warn!("{}", e);
+                e
+            })?;
 
             if let Some(mode) = ctrl.config.builtins.get(&ctrl.config.current_mode) {
                 led = Some(mode.clone());
@@ -136,13 +143,19 @@ impl CtrlKbdLedZbus {
                 .await
                 .unwrap_or_else(|err| warn!("{}", err));
         }
+        Ok(())
     }
 
-    async fn prev_led_mode(&self, #[zbus(signal_context)] ctxt: SignalContext<'_>) {
+    async fn prev_led_mode(
+        &self,
+        #[zbus(signal_context)] ctxt: SignalContext<'_>,
+    ) -> zbus::fdo::Result<()> {
         let mut led = None;
         if let Ok(mut ctrl) = self.0.lock() {
-            ctrl.toggle_mode(true)
-                .unwrap_or_else(|err| warn!("{}", err));
+            ctrl.toggle_mode(true).map_err(|e| {
+                warn!("{}", e);
+                e
+            })?;
 
             if let Some(mode) = ctrl.config.builtins.get(&ctrl.config.current_mode) {
                 led = Some(mode.clone());
@@ -153,20 +166,27 @@ impl CtrlKbdLedZbus {
                 .await
                 .unwrap_or_else(|err| warn!("{}", err));
         }
+        Ok(())
     }
 
-    async fn next_led_brightness(&self) {
+    async fn next_led_brightness(&self) -> zbus::fdo::Result<()> {
         if let Ok(mut ctrl) = self.0.try_lock() {
-            ctrl.next_brightness()
-                .unwrap_or_else(|err| warn!("{}", err));
+            ctrl.next_brightness().map_err(|e| {
+                warn!("{}", e);
+                e
+            })?;
         }
+        Ok(())
     }
 
-    async fn prev_led_brightness(&self) {
+    async fn prev_led_brightness(&self) -> zbus::fdo::Result<()> {
         if let Ok(mut ctrl) = self.0.try_lock() {
-            ctrl.prev_brightness()
-                .unwrap_or_else(|err| warn!("{}", err));
+            ctrl.prev_brightness().map_err(|e| {
+                warn!("{}", e);
+                e
+            })?;
         }
+        Ok(())
     }
 
     #[dbus_interface(property)]
diff --git a/daemon/src/ctrl_rog_bios.rs b/daemon/src/ctrl_rog_bios.rs
index 0b687f24..dabf565e 100644
--- a/daemon/src/ctrl_rog_bios.rs
+++ b/daemon/src/ctrl_rog_bios.rs
@@ -20,6 +20,8 @@ static ASUS_SWITCH_GRAPHIC_MODE: &str =
 static ASUS_POST_LOGO_SOUND: &str =
     "/sys/firmware/efi/efivars/AsusPostLogoSound-607005d5-3f75-4b2e-98f0-85ba66797a3e";
 static ASUS_PANEL_OD_PATH: &str = "/sys/devices/platform/asus-nb-wmi/panel_od";
+static ASUS_DGPU_DISABLE_PATH: &str = "/sys/devices/platform/asus-nb-wmi/dgpu_disable";
+static ASUS_EGPU_ENABLE_PATH: &str = "/sys/devices/platform/asus-nb-wmi/egpu_enable";
 
 pub struct CtrlRogBios {
     _config: Arc<Mutex<Config>>,
@@ -30,9 +32,11 @@ impl GetSupported for CtrlRogBios {
 
     fn get_supported() -> Self::A {
         RogBiosSupportedFunctions {
-            post_sound_toggle: Path::new(ASUS_POST_LOGO_SOUND).exists(),
-            dedicated_gfx_toggle: Path::new(ASUS_SWITCH_GRAPHIC_MODE).exists(),
+            post_sound: Path::new(ASUS_POST_LOGO_SOUND).exists(),
+            dedicated_gfx: Path::new(ASUS_SWITCH_GRAPHIC_MODE).exists(),
             panel_overdrive: Path::new(ASUS_PANEL_OD_PATH).exists(),
+            dgpu_disable: Path::new(ASUS_DGPU_DISABLE_PATH).exists(),
+            egpu_enable: Path::new(ASUS_EGPU_ENABLE_PATH).exists(),
         }
     }
 }
diff --git a/daemon/src/error.rs b/daemon/src/error.rs
index 7c71ebde..67853b50 100644
--- a/daemon/src/error.rs
+++ b/daemon/src/error.rs
@@ -51,7 +51,7 @@ impl fmt::Display for RogError {
             RogError::Io(detail) => write!(f, "std::io error: {}", detail),
             RogError::Zbus(detail) => write!(f, "Zbus error: {}", detail),
             RogError::ChargeLimit(value) => write!(f, "Invalid charging limit, not in range 20-100%: {}", value),
-            RogError::AuraEffectNotSupported => write!(f, "Aura efect not supported"),
+            RogError::AuraEffectNotSupported => write!(f, "Aura effect not supported"),
             RogError::NoAuraKeyboard => write!(f, "No supported Aura keyboard"),
             RogError::NoAuraNode => write!(f, "No Aura keyboard node found"),
         }
diff --git a/rog-aura/Cargo.toml b/rog-aura/Cargo.toml
index 3e11fd08..d3139d22 100644
--- a/rog-aura/Cargo.toml
+++ b/rog-aura/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "rog_aura"
-version = "1.1.1"
+version = "1.1.2"
 license = "MPL-2.0"
 readme = "README.md"
 authors = ["Luke <luke@ljones.dev>"]
diff --git a/rog-supported/Cargo.toml b/rog-supported/Cargo.toml
index dba59c44..d8da8eb1 100644
--- a/rog-supported/Cargo.toml
+++ b/rog-supported/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "rog_supported"
-version = "4.0.0"
+version = "4.2.0"
 license = "MPL-2.0"
 readme = "README.md"
 authors = ["Luke <luke@ljones.dev>"]
diff --git a/rog-supported/src/lib.rs b/rog-supported/src/lib.rs
index c2118d50..3de399e6 100644
--- a/rog-supported/src/lib.rs
+++ b/rog-supported/src/lib.rs
@@ -38,9 +38,11 @@ pub struct LedSupportedFunctions {
 
 #[derive(Serialize, Deserialize, Type, Debug)]
 pub struct RogBiosSupportedFunctions {
-    pub post_sound_toggle: bool,
-    pub dedicated_gfx_toggle: bool,
+    pub post_sound: bool,
+    pub dedicated_gfx: bool,
     pub panel_overdrive: bool,
+    pub dgpu_disable: bool,
+    pub egpu_enable: bool,
 }
 
 impl fmt::Display for SupportedFunctions {
@@ -88,7 +90,11 @@ impl fmt::Display for LedSupportedFunctions {
 impl fmt::Display for RogBiosSupportedFunctions {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         writeln!(f, "ROG BIOS:")?;
-        writeln!(f, "\tPOST sound toggle: {}", self.post_sound_toggle)?;
-        writeln!(f, "\tDedicated GFX toggle: {}", self.dedicated_gfx_toggle)
+        writeln!(f, "\tPOST sound switch: {}", self.post_sound)?;
+        writeln!(f, "\tPanel Overdrive: {}", self.panel_overdrive)?;
+        writeln!(f, "\tdGPU disable switch: {}", self.dgpu_disable)?;
+        writeln!(f, "\teGPU enable switch: {}", self.egpu_enable)?;
+        writeln!(f, "\tDedicated GFX switch: {}", self.dedicated_gfx)?;
+        Ok(())
     }
 }