diff --git a/Cargo.lock b/Cargo.lock
index ac97750..a7bfc43 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1658,7 +1658,7 @@ checksum = "09edd9e8b54e49e587e4f6295a7d29c3ea94d469cb40ab8ca70b288248a81db2"
 
 [[package]]
 name = "lesavka_client"
-version = "0.27.0"
+version = "0.27.1"
 dependencies = [
  "anyhow",
  "async-stream",
@@ -1692,7 +1692,7 @@ dependencies = [
 
 [[package]]
 name = "lesavka_common"
-version = "0.27.0"
+version = "0.27.1"
 dependencies = [
  "anyhow",
  "base64",
@@ -1704,7 +1704,7 @@ dependencies = [
 
 [[package]]
 name = "lesavka_server"
-version = "0.27.0"
+version = "0.27.1"
 dependencies = [
  "anyhow",
  "base64",
diff --git a/client/Cargo.toml b/client/Cargo.toml
index 6f25dbf..0315c87 100644
--- a/client/Cargo.toml
+++ b/client/Cargo.toml
@@ -4,7 +4,7 @@ path                    = "src/main.rs"
 
 [package]
 name                    = "lesavka_client"
-version                 = "0.27.0"
+version                 = "0.27.1"
 edition                 = "2024"
 
 [dependencies]
diff --git a/common/Cargo.toml b/common/Cargo.toml
index e5f83bb..1010d6f 100644
--- a/common/Cargo.toml
+++ b/common/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name                    = "lesavka_common"
-version                 = "0.27.0"
+version                 = "0.27.1"
 edition                 = "2024"
 build                   = "build.rs"
 
diff --git a/scripts/install/server.sh b/scripts/install/server.sh
index 30d55b4..f1c7ef9 100755
--- a/scripts/install/server.sh
+++ b/scripts/install/server.sh
@@ -1621,7 +1621,7 @@ SERVER_ENV_TMP=$(mktemp)
     printf 'LESAVKA_HDMI_CONNECTOR=%s\n' "$HDMI_CONNECTOR"
   fi
   printf 'LESAVKA_CAM_OUTPUT=%s\n' "${LESAVKA_INSTALL_CAM_OUTPUT:-uvc}"
-  printf 'LESAVKA_CAM_HDMI_MIRROR=%s\n' "${LESAVKA_INSTALL_CAM_HDMI_MIRROR:-${LESAVKA_CAM_HDMI_MIRROR:-0}}"
+  printf 'LESAVKA_CAM_HDMI_MIRROR=%s\n' "${LESAVKA_INSTALL_CAM_HDMI_MIRROR:-${LESAVKA_CAM_HDMI_MIRROR:-auto}}"
   printf 'LESAVKA_CAM_CODEC=%s\n' "${INSTALL_CAM_CODEC}"
   printf 'LESAVKA_UPLINK_CAMERA_CODEC=%s\n' "${INSTALL_CAM_CODEC}"
   if [[ -n "$INSTALL_HEVC_DECODER" ]]; then
diff --git a/server/Cargo.toml b/server/Cargo.toml
index 471211c..d1819a2 100644
--- a/server/Cargo.toml
+++ b/server/Cargo.toml
@@ -16,7 +16,7 @@ bench                   = false
 
 [package]
 name                    = "lesavka_server"
-version                 = "0.27.0"
+version                 = "0.27.1"
 edition                 = "2024"
 autobins                = false
 
diff --git a/server/src/camera_runtime.rs b/server/src/camera_runtime.rs
index dda6eac..dca07f0 100644
--- a/server/src/camera_runtime.rs
+++ b/server/src/camera_runtime.rs
@@ -249,8 +249,16 @@ pub fn camera_cfg_eq(a: &camera::CameraConfig, b: &camera::CameraConfig) -> bool
 }
 
 fn camera_relay_profile(cfg: &camera::CameraConfig) -> CameraRelayProfile {
-    let hdmi_mirror = (cfg.output == camera::CameraOutput::Uvc && hdmi_mirror_enabled())
-        .then(|| camera::hdmi_mirror_config(cfg));
+    let hdmi_mirror = (cfg.output == camera::CameraOutput::Uvc)
+        .then(|| match hdmi_mirror_setting() {
+            HdmiMirrorSetting::Enabled => Some(camera::hdmi_mirror_config(cfg)),
+            HdmiMirrorSetting::Auto if hdmi_mirror_connector_is_configured() => {
+                let mirror = camera::hdmi_mirror_config(cfg);
+                mirror.hdmi.is_some().then_some(mirror)
+            }
+            HdmiMirrorSetting::Auto | HdmiMirrorSetting::Disabled => None,
+        })
+        .flatten();
     CameraRelayProfile {
         primary: cfg.clone(),
         hdmi_mirror,
@@ -266,22 +274,33 @@ fn camera_relay_profile_eq(a: &CameraRelayProfile, b: &CameraRelayProfile) -> bo
         }
 }
 
-fn hdmi_mirror_enabled() -> bool {
+#[derive(Clone, Copy, Debug, PartialEq, Eq)]
+enum HdmiMirrorSetting {
+    Disabled,
+    Enabled,
+    Auto,
+}
+
+fn hdmi_mirror_setting() -> HdmiMirrorSetting {
     std::env::var("LESAVKA_CAM_HDMI_MIRROR")
         .ok()
-        .map(|value| {
-            let trimmed = value.trim();
-            trimmed.eq_ignore_ascii_case("1")
-                || trimmed.eq_ignore_ascii_case("true")
-                || trimmed.eq_ignore_ascii_case("yes")
-                || trimmed.eq_ignore_ascii_case("on")
+        .map(|value| match value.trim().to_ascii_lowercase().as_str() {
+            "1" | "true" | "yes" | "on" => HdmiMirrorSetting::Enabled,
+            "auto" => HdmiMirrorSetting::Auto,
+            _ => HdmiMirrorSetting::Disabled,
         })
-        .unwrap_or(false)
+        .unwrap_or(HdmiMirrorSetting::Disabled)
+}
+
+fn hdmi_mirror_connector_is_configured() -> bool {
+    std::env::var("LESAVKA_HDMI_CONNECTOR")
+        .ok()
+        .is_some_and(|value| !value.trim().is_empty())
 }
 
 #[cfg(test)]
 mod tests {
-    use super::{camera_cfg_eq, camera_relay_profile, camera_relay_profile_eq};
+    use super::{HdmiMirrorSetting, camera_cfg_eq, camera_relay_profile, camera_relay_profile_eq};
     use crate::camera::{CameraCodec, CameraConfig, CameraOutput, HdmiConnector};
     use serial_test::serial;
 
@@ -342,6 +361,46 @@ mod tests {
         });
     }
 
+    #[test]
+    #[serial]
+    fn camera_relay_profile_auto_mirrors_only_when_hdmi_is_detected() {
+        let base = CameraConfig {
+            output: CameraOutput::Uvc,
+            codec: CameraCodec::Mjpeg,
+            width: 1280,
+            height: 720,
+            fps: 20,
+            hdmi: None,
+        };
+
+        temp_env::with_vars(
+            [
+                ("LESAVKA_CAM_HDMI_MIRROR", Some("auto")),
+                ("LESAVKA_HDMI_CONNECTOR", None::<&str>),
+            ],
+            || {
+                assert_eq!(super::hdmi_mirror_setting(), HdmiMirrorSetting::Auto);
+                assert!(camera_relay_profile(&base).hdmi_mirror.is_none());
+            },
+        );
+
+        temp_env::with_vars(
+            [
+                ("LESAVKA_CAM_HDMI_MIRROR", Some("auto")),
+                ("LESAVKA_HDMI_CONNECTOR", Some("card1-HDMI-A-1")),
+            ],
+            || {
+                let profile = camera_relay_profile(&base);
+                let mirror = profile
+                    .hdmi_mirror
+                    .as_ref()
+                    .expect("auto HDMI mirror config");
+                assert_eq!(mirror.output, CameraOutput::Hdmi);
+                assert_eq!(mirror.hdmi.as_ref().unwrap().name, "card1-HDMI-A-1");
+            },
+        );
+    }
+
     #[test]
     #[serial]
     fn camera_relay_profile_reuse_requires_same_mirror_connector() {
diff --git a/tests/contract/scripts/install/server_install_script_contract.rs b/tests/contract/scripts/install/server_install_script_contract.rs
index fe7c68e..1784a3f 100644
--- a/tests/contract/scripts/install/server_install_script_contract.rs
+++ b/tests/contract/scripts/install/server_install_script_contract.rs
@@ -86,7 +86,7 @@ fn server_install_pins_hdmi_camera_and_display_defaults() {
     assert!(SERVER_INSTALL.contains("${LESAVKA_INSTALL_CAM_OUTPUT:-uvc}"));
     assert!(
         SERVER_INSTALL
-            .contains("${LESAVKA_INSTALL_CAM_HDMI_MIRROR:-${LESAVKA_CAM_HDMI_MIRROR:-0}}")
+            .contains("${LESAVKA_INSTALL_CAM_HDMI_MIRROR:-${LESAVKA_CAM_HDMI_MIRROR:-auto}}")
     );
     assert!(SERVER_INSTALL.contains("normalize_cam_codec()"));
     assert!(