diff --git a/com.steampowered.SteamOSManager1.xml b/com.steampowered.SteamOSManager1.xml
index 0797000..f3bf527 100644
--- a/com.steampowered.SteamOSManager1.xml
+++ b/com.steampowered.SteamOSManager1.xml
@@ -27,20 +27,6 @@
     -->
     <property name="AlsCalibrationGain" type="ad" access="read"/>
 
-    <!--
-        GetAlsIntegrationTimeFileDescriptor:
-
-        Get the ALS integration time file descriptor.
-
-        @descriptor: A file descriptor that can be written to to set ALS
-        integration time. Will be null if unable to open file or other error
-        occurred.
-    -->
-    <method name="GetAlsIntegrationTimeFileDescriptor">
-      <arg type="u" name="index" direction="in"/>
-      <arg type="h" name="descriptor" direction="out"/>
-    </method>
-
   </interface>
 
   <!--
diff --git a/src/manager/user.rs b/src/manager/user.rs
index ae910fb..9cc69c3 100644
--- a/src/manager/user.rs
+++ b/src/manager/user.rs
@@ -12,8 +12,7 @@ use tokio::sync::mpsc::{Sender, UnboundedSender};
 use tokio::sync::oneshot;
 use tracing::error;
 use zbus::proxy::Builder;
-use zbus::zvariant::{self, Fd};
-use zbus::{fdo, interface, CacheProperties, Connection, Proxy, SignalContext};
+use zbus::{fdo, interface, zvariant, CacheProperties, Connection, Proxy, SignalContext};
 
 use crate::cec::{HdmiCecControl, HdmiCecState};
 use crate::daemon::user::Command;
@@ -217,18 +216,6 @@ impl AmbientLightSensor1 {
     async fn als_calibration_gain(&self) -> fdo::Result<Vec<f64>> {
         getter!(self, "AlsCalibrationGain")
     }
-
-    async fn get_als_integration_time_file_descriptor(&self, index: u32) -> fdo::Result<Fd> {
-        let m = self
-            .proxy
-            .call_method("GetAlsIntegrationTimeFileDescriptor", &(index))
-            .await
-            .map_err(zbus_to_zbus_fdo)?;
-        match m.body().deserialize::<Fd>() {
-            Ok(fd) => fd.try_to_owned().map_err(to_zbus_fdo_error),
-            Err(e) => Err(zbus_to_zbus_fdo(e)),
-        }
-    }
 }
 
 #[interface(name = "com.steampowered.SteamOSManager1.CpuScaling1")]