diff --git a/src/backend/input.rs b/src/backend/input.rs
index 24625d5..330aafe 100644
--- a/src/backend/input.rs
+++ b/src/backend/input.rs
@@ -87,6 +87,7 @@ pub trait Event {
 /// that is not used by an [`InputBackend`] implementation. Initialization is not
 /// possible, making accidental use impossible and enabling a lot of possible
 /// compiler optimizations.
+#[derive(Debug)]
 pub enum UnusedEvent {}
 
 impl Event for UnusedEvent {
@@ -537,6 +538,7 @@ pub trait InputBackend: Sized {
 }
 
 /// Different events that can be generated by an input backend
+#[derive(Debug)]
 pub enum InputEvent<B: InputBackend> {
     /// A new seat has been created
     NewSeat(Seat),
diff --git a/src/backend/udev.rs b/src/backend/udev.rs
index ffae665..45fe192 100644
--- a/src/backend/udev.rs
+++ b/src/backend/udev.rs
@@ -43,6 +43,7 @@ use nix::sys::stat::{dev_t, stat};
 use std::{
     collections::HashMap,
     ffi::OsString,
+    fmt,
     io::Result as IoResult,
     os::unix::io::{AsRawFd, RawFd},
     path::{Path, PathBuf},
@@ -62,6 +63,17 @@ pub struct UdevBackend {
     logger: ::slog::Logger,
 }
 
+impl fmt::Debug for UdevBackend {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        use udev::AsRaw;
+        f.debug_struct("UdevBackend")
+            .field("devices", &self.devices)
+            .field("monitor", &format!("MonitorSocket ({:?})", self.monitor.as_raw()))
+            .field("logger", &self.logger)
+            .finish()
+    }
+}
+
 impl AsRawFd for UdevBackend {
     fn as_raw_fd(&self) -> RawFd {
         self.monitor.as_raw_fd()
@@ -182,6 +194,7 @@ impl EventSource for UdevBackend {
 }
 
 /// Events generated by the [`UdevBackend`], notifying you of changes in system devices
+#[derive(Debug)]
 pub enum UdevEvent {
     /// A new device has been detected
     Added {
diff --git a/src/backend/winit.rs b/src/backend/winit.rs
index 9896cf7..995c6fd 100644
--- a/src/backend/winit.rs
+++ b/src/backend/winit.rs
@@ -16,6 +16,7 @@ use nix::libc::c_void;
 use std::{
     cell::{Ref, RefCell},
     convert::TryInto,
+    fmt,
     rc::Rc,
     time::Instant,
 };
@@ -65,6 +66,16 @@ enum Window {
     },
 }
 
+impl fmt::Debug for Window {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        match self {
+            Window::Wayland { .. } => f.debug_tuple("Window::Wayland"),
+            Window::X11 { .. } => f.debug_tuple("Window::X11"),
+        }
+        .finish()
+    }
+}
+
 impl Window {
     fn window(&self) -> Ref<'_, WinitWindow> {
         match *self {
@@ -74,6 +85,7 @@ impl Window {
     }
 }
 
+#[derive(Debug)]
 struct WindowSize {
     physical_size: PhysicalSize<u32>,
     scale_factor: f64,
@@ -81,6 +93,7 @@ struct WindowSize {
 
 /// Window with an active EGL Context created by `winit`. Implements the
 /// [`EGLGraphicsBackend`] and [`GLGraphicsBackend`] graphics backend trait
+#[derive(Debug)]
 pub struct WinitGraphicsBackend {
     window: Rc<Window>,
     size: Rc<RefCell<WindowSize>>,
@@ -91,6 +104,7 @@ pub struct WinitGraphicsBackend {
 ///
 /// You need to call [`dispatch_new_events`](InputBackend::dispatch_new_events)
 /// periodically to receive any events.
+#[derive(Debug)]
 pub struct WinitInputBackend {
     events_loop: EventLoop<()>,
     window: Rc<Window>,
@@ -226,6 +240,7 @@ where
 }
 
 /// Specific events generated by Winit
+#[derive(Debug)]
 pub enum WinitEvent {
     /// The window has been resized
     Resized {
@@ -358,8 +373,8 @@ pub enum WinitInputError {
     WindowClosed,
 }
 
-#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
 /// Winit-Backend internal event wrapping `winit`'s types into a [`KeyboardKeyEvent`]
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
 pub struct WinitKeyboardInputEvent {
     time: u32,
     key: u32,
@@ -387,8 +402,8 @@ impl KeyboardKeyEvent for WinitKeyboardInputEvent {
     }
 }
 
-#[derive(Clone)]
 /// Winit-Backend internal event wrapping `winit`'s types into a [`PointerMotionAbsoluteEvent`]
+#[derive(Debug, Clone)]
 pub struct WinitMouseMovedEvent {
     size: Rc<RefCell<WindowSize>>,
     time: u32,
@@ -426,8 +441,8 @@ impl PointerMotionAbsoluteEvent for WinitMouseMovedEvent {
     }
 }
 
-#[derive(Debug, Clone, Copy, PartialEq)]
 /// Winit-Backend internal event wrapping `winit`'s types into a [`PointerAxisEvent`]
+#[derive(Debug, Clone, Copy, PartialEq)]
 pub struct WinitMouseWheelEvent {
     time: u32,
     delta: MouseScrollDelta,
@@ -464,8 +479,8 @@ impl PointerAxisEvent for WinitMouseWheelEvent {
     }
 }
 
-#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
 /// Winit-Backend internal event wrapping `winit`'s types into a [`PointerButtonEvent`]
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
 pub struct WinitMouseInputEvent {
     time: u32,
     button: WinitMouseButton,
@@ -488,8 +503,8 @@ impl PointerButtonEvent for WinitMouseInputEvent {
     }
 }
 
-#[derive(Clone)]
 /// Winit-Backend internal event wrapping `winit`'s types into a [`TouchDownEvent`]
+#[derive(Debug, Clone)]
 pub struct WinitTouchStartedEvent {
     size: Rc<RefCell<WindowSize>>,
     time: u32,
@@ -531,8 +546,8 @@ impl TouchDownEvent for WinitTouchStartedEvent {
     }
 }
 
-#[derive(Clone)]
 /// Winit-Backend internal event wrapping `winit`'s types into a [`TouchMotionEvent`]
+#[derive(Debug, Clone)]
 pub struct WinitTouchMovedEvent {
     size: Rc<RefCell<WindowSize>>,
     time: u32,
@@ -574,8 +589,8 @@ impl TouchMotionEvent for WinitTouchMovedEvent {
     }
 }
 
-#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
 /// Winit-Backend internal event wrapping `winit`'s types into a `TouchUpEvent`
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
 pub struct WinitTouchEndedEvent {
     time: u32,
     id: u64,
@@ -593,8 +608,8 @@ impl TouchUpEvent for WinitTouchEndedEvent {
     }
 }
 
-#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
 /// Winit-Backend internal event wrapping `winit`'s types into a [`TouchCancelEvent`]
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
 pub struct WinitTouchCancelledEvent {
     time: u32,
     id: u64,
@@ -615,6 +630,7 @@ impl TouchCancelEvent for WinitTouchCancelledEvent {
 /// Input config for Winit
 ///
 /// This backend does not allow any input configuration, so this type does nothing.
+#[derive(Debug)]
 pub struct WinitInputConfig;
 
 impl InputBackend for WinitInputBackend {