diff --git a/src/backend/input.rs b/src/backend/input.rs
index 3ba3a18..61728d1 100644
--- a/src/backend/input.rs
+++ b/src/backend/input.rs
@@ -2,8 +2,6 @@ use std::{collections::VecDeque, time::Instant};
 
 use glam::{Affine3A, Vec2, Vec3A};
 
-#[cfg(feature = "openvr")]
-use ovr_overlay::TrackedDeviceIndex;
 use smallvec::{smallvec, SmallVec};
 
 use crate::backend::common::snap_upright;
@@ -16,9 +14,6 @@ use super::{
 };
 
 pub struct TrackedDevice {
-    #[cfg(feature = "openvr")]
-    pub index: TrackedDeviceIndex,
-    pub valid: bool,
     pub soc: Option<f32>,
     pub charging: bool,
     pub role: TrackedDeviceRole,
diff --git a/src/backend/openvr/input.rs b/src/backend/openvr/input.rs
index 37bcbc0..5ee5a81 100644
--- a/src/backend/openvr/input.rs
+++ b/src/backend/openvr/input.rs
@@ -309,8 +309,6 @@ fn get_tracked_device(
     }
 
     Some(TrackedDevice {
-        valid: true,
-        index,
         soc,
         charging,
         role,
diff --git a/src/backend/uidev/mod.rs b/src/backend/uidev/mod.rs
index 091c045..890495f 100644
--- a/src/backend/uidev/mod.rs
+++ b/src/backend/uidev/mod.rs
@@ -25,10 +25,13 @@ use crate::{
         Canvas,
     },
     hid::USE_UINPUT,
-    state::AppState,
+    state::{AppState, ScreenMeta},
 };
 
-use super::overlay::OverlayRenderer;
+use super::{
+    input::{TrackedDevice, TrackedDeviceRole},
+    overlay::OverlayRenderer,
+};
 
 static LAST_SIZE: std::sync::atomic::AtomicU64 = std::sync::atomic::AtomicU64::new(0);
 
@@ -114,6 +117,9 @@ pub fn uidev_run(panel_name: &str) -> anyhow::Result<()> {
     USE_UINPUT.store(false, std::sync::atomic::Ordering::Relaxed);
 
     let mut state = AppState::from_graphics(graphics.clone())?;
+    add_dummy_devices(&mut state);
+    add_dummy_screens(&mut state);
+
     let mut preview = Some(PreviewState::new(
         &mut state,
         surface.clone(),
@@ -257,3 +263,54 @@ fn create_swapchain(
 
     Ok((swapchain, image_views))
 }
+
+fn add_dummy_devices(app: &mut AppState) {
+    app.input_state.devices.push(TrackedDevice {
+        role: TrackedDeviceRole::Hmd,
+        soc: Some(0.42),
+        charging: true,
+    });
+    app.input_state.devices.push(TrackedDevice {
+        role: TrackedDeviceRole::LeftHand,
+        soc: Some(0.72),
+        charging: false,
+    });
+    app.input_state.devices.push(TrackedDevice {
+        role: TrackedDeviceRole::RightHand,
+        soc: Some(0.73),
+        charging: false,
+    });
+    app.input_state.devices.push(TrackedDevice {
+        role: TrackedDeviceRole::Tracker,
+        soc: Some(0.65),
+        charging: false,
+    });
+    app.input_state.devices.push(TrackedDevice {
+        role: TrackedDeviceRole::Tracker,
+        soc: Some(0.67),
+        charging: false,
+    });
+    app.input_state.devices.push(TrackedDevice {
+        role: TrackedDeviceRole::Tracker,
+        soc: Some(0.69),
+        charging: false,
+    });
+}
+
+fn add_dummy_screens(app: &mut AppState) {
+    app.screens.push(ScreenMeta {
+        name: "HDMI-A-1".into(),
+        id: 0,
+        native_handle: 0,
+    });
+    app.screens.push(ScreenMeta {
+        name: "DP-2".into(),
+        id: 0,
+        native_handle: 0,
+    });
+    app.screens.push(ScreenMeta {
+        name: "DP-3".into(),
+        id: 0,
+        native_handle: 0,
+    });
+}