diff --git a/src/backend/kms/device.rs b/src/backend/kms/device.rs
index aa932230..694e7e75 100644
--- a/src/backend/kms/device.rs
+++ b/src/backend/kms/device.rs
@@ -625,6 +625,7 @@ impl Device {
             let output_map = self
                 .surfaces
                 .iter()
+                .filter(|(_, s)| s.is_active())
                 .map(|(crtc, surface)| (*crtc, surface.output.clone()))
                 .collect::<HashMap<_, _>>();
 
diff --git a/src/backend/kms/mod.rs b/src/backend/kms/mod.rs
index ce467ece..199884b1 100644
--- a/src/backend/kms/mod.rs
+++ b/src/backend/kms/mod.rs
@@ -679,6 +679,7 @@ impl KmsState {
             let output_map = device
                 .surfaces
                 .iter()
+                .filter(|(_, s)| s.is_active())
                 .map(|(crtc, surface)| (*crtc, surface.output.clone()))
                 .collect::<HashMap<_, _>>();