diff --git a/exwm-floating.el b/exwm-floating.el
index aa2f98822..d5cb53b9c 100644
--- a/exwm-floating.el
+++ b/exwm-floating.el
@@ -83,6 +83,7 @@ This is also used by X window containers.")
 
 (defun exwm-floating--set-allowed-actions (id tilling)
   "Set _NET_WM_ALLOWED_ACTIONS."
+  (exwm--log "#x%x" id)
   (xcb:+request exwm--connection
       (make-instance 'xcb:ewmh:set-_NET_WM_ALLOWED_ACTIONS
                      :window id
@@ -326,6 +327,7 @@ This is also used by X window containers.")
 
 (defun exwm-floating--unset-floating (id)
   "Make window ID non-floating."
+  (exwm--log "#x%x" id)
   (let ((buffer (exwm--id->buffer id)))
     (with-current-buffer buffer
       (when exwm--floating-frame
@@ -400,6 +402,7 @@ This is also used by X window containers.")
 (cl-defun exwm-floating-toggle-floating ()
   "Toggle the current window between floating and non-floating states."
   (interactive)
+  (exwm--log)
   (unless (derived-mode-p 'exwm-mode)
     (cl-return-from exwm-floating-toggle-floating))
   (with-current-buffer (window-buffer)
@@ -411,6 +414,7 @@ This is also used by X window containers.")
 (defun exwm-floating-hide ()
   "Hide the current floating X window (which would show again when selected)."
   (interactive)
+  (exwm--log)
   (when (and (derived-mode-p 'exwm-mode)
              exwm--floating-frame)
     (exwm-layout--hide exwm--id)
@@ -418,6 +422,7 @@ This is also used by X window containers.")
 
 (defun exwm-floating--start-moveresize (id &optional type)
   "Start move/resize."
+  (exwm--log "#x%x" id)
   (let ((buffer-or-id (or (exwm--id->buffer id) id))
         frame container-or-id x y width height cursor)
     (if (bufferp buffer-or-id)
@@ -581,6 +586,7 @@ This is also used by X window containers.")
 
 (defun exwm-floating--stop-moveresize (&rest _args)
   "Stop move/resize."
+  (exwm--log)
   (xcb:+request exwm--connection
       (make-instance 'xcb:UngrabPointer :time xcb:Time:CurrentTime))
   (when exwm-floating--moveresize-calculate
@@ -641,6 +647,7 @@ This is also used by X window containers.")
   "Move a floating window right by DELTA-X pixels and down by DELTA-Y pixels.
 
 Both DELTA-X and DELTA-Y default to 1.  This command should be bound locally."
+  (exwm--log "delta-x: %s, delta-y: %s" delta-x delta-y)
   (unless (and (derived-mode-p 'exwm-mode) exwm--floating-frame)
     (user-error "[EXWM] `exwm-floating-move' is only for floating X windows"))
   (unless delta-x (setq delta-x 1))
@@ -663,6 +670,7 @@ Both DELTA-X and DELTA-Y default to 1.  This command should be bound locally."
 
 (defun exwm-floating--init ()
   "Initialize floating module."
+  (exwm--log)
   ;; Check border width.
   (unless (and (integerp exwm-floating-border-width)
                (> exwm-floating-border-width 0))
@@ -708,7 +716,8 @@ Both DELTA-X and DELTA-Y default to 1.  This command should be bound locally."
         (xcb:cursor:load-cursor exwm--connection "left_side")))
 
 (defun exwm-floating--exit ()
-  "Exit the floating module.")
+  "Exit the floating module."
+  (exwm--log))
 
 
 
diff --git a/exwm-input.el b/exwm-input.el
index e184b3948..b7b55d88f 100644
--- a/exwm-input.el
+++ b/exwm-input.el
@@ -221,7 +221,7 @@ ARGS are additional arguments to CALLBACK."
     (with-slots (time root event root-x root-y event-x event-y state) evt
       (setq buffer (exwm--id->buffer event)
             window (get-buffer-window buffer t))
-      (exwm--log "EnterNotify: buffer=%s; window=%s" buffer window)
+      (exwm--log "buffer=%s; window=%s" buffer window)
       (when (and buffer window (not (eq window (selected-window))))
         (setq frame (window-frame window)
               frame-xid (frame-parameter frame 'exwm-id))
@@ -257,6 +257,7 @@ ARGS are additional arguments to CALLBACK."
         (xcb:flush exwm--connection)))))
 
 (defun exwm-input--on-keysyms-update ()
+  (exwm--log)
   (let ((exwm-input--global-prefix-keys nil))
     (exwm-input--update-global-prefix-keys)))
 
@@ -486,6 +487,7 @@ ARGS are additional arguments to CALLBACK."
     (xcb:flush exwm--connection)))
 
 (defun exwm-input--set-key (key command)
+  (exwm--log "key: %s, command: %s" key command)
   (global-set-key key command)
   (cl-pushnew key exwm-input--global-keys))
 
@@ -567,6 +569,7 @@ instead."
 
 (defun exwm-input--cache-event (event &optional temp-line-mode)
   "Cache EVENT."
+  (exwm--log "%s" event)
   (setq exwm-input--line-mode-cache
         (vconcat exwm-input--line-mode-cache (vector event)))
   ;; Attempt to translate this key sequence.
@@ -673,6 +676,7 @@ The return value is used as event_mode to release the original
 button event."
   (with-current-buffer buffer
     (let ((read-event (exwm-input--mimic-read-event button-event)))
+      (exwm--log "%s" read-event)
       (if (and read-event
                (exwm-input--event-passthrough-p read-event))
           ;; The event should be forwarded to emacs
@@ -687,10 +691,12 @@ button event."
   "Handle button events in char-mode.
 The return value is used as event_mode to release the original
 button event."
+  (exwm--log)
   xcb:Allow:ReplayPointer)
 
 (defun exwm-input--update-mode-line (id)
   "Update the propertized `mode-line-process' for window ID."
+  (exwm--log "#x%x" id)
   (let (help-echo cmd mode)
     (cl-case exwm--input-mode
       (line-mode
@@ -822,6 +828,7 @@ button event."
 EXWM will prompt for the key to send.  This command can be prefixed to send
 multiple keys."
   (interactive "p")
+  (exwm--log)
   (unless (derived-mode-p 'exwm-mode)
     (cl-return-from exwm-input-send-next-key))
   (when (> times 12) (setq times 12))
@@ -840,6 +847,7 @@ multiple keys."
 
 (defun exwm-input--set-simulation-keys (simulation-keys &optional no-refresh)
   "Set simulation keys."
+  (exwm--log "%s" simulation-keys)
   (unless no-refresh
     ;; Unbind simulation keys.
     (let ((hash (buffer-local-value 'exwm-input--simulation-keys
@@ -941,6 +949,7 @@ ends unless it's specifically saved in the Customize interface for
                         (format "Simulate %s as" (key-description original))
                         ?\C-g)))
      (list original simulated)))
+  (exwm--log "original: %s, simulated: %s" original-key simulated-key)
   (when (and original-key simulated-key)
     (let ((entry `((,original-key . ,simulated-key))))
       (setq exwm-input-simulation-keys (append exwm-input-simulation-keys
@@ -949,6 +958,7 @@ ends unless it's specifically saved in the Customize interface for
 
 (defun exwm-input--unset-simulation-keys ()
   "Clear simulation keys and key bindings defined."
+  (exwm--log)
   (when (hash-table-p exwm-input--simulation-keys)
     (maphash (lambda (key _value)
                (when (sequencep key)
@@ -961,6 +971,7 @@ ends unless it's specifically saved in the Customize interface for
 
 SIMULATION-KEYS is an alist of the form (original-key . simulated-key),
 where both ORIGINAL-KEY and SIMULATED-KEY are key sequences."
+  (exwm--log)
   (make-local-variable 'exwm-input--simulation-keys)
   (use-local-map (copy-keymap exwm-mode-map))
   (let ((exwm-input--local-simulation-keys t))
@@ -970,6 +981,7 @@ where both ORIGINAL-KEY and SIMULATED-KEY are key sequences."
 (cl-defun exwm-input-send-simulation-key (times)
   "Fake a key event according to the last input key sequence."
   (interactive "p")
+  (exwm--log)
   (unless (derived-mode-p 'exwm-mode)
     (cl-return-from exwm-input-send-simulation-key))
   (let ((keys (gethash (this-single-command-keys)
@@ -989,6 +1001,7 @@ where both ORIGINAL-KEY and SIMULATED-KEY are key sequences."
 
 (defun exwm-input--init ()
   "Initialize the keyboard module."
+  (exwm--log)
   ;; Refresh keyboard mapping
   (xcb:keysyms:init exwm--connection #'exwm-input--on-keysyms-update)
   ;; Create the X window and intern the atom used to fetch timestamp.
@@ -1046,10 +1059,12 @@ where both ORIGINAL-KEY and SIMULATED-KEY are key sequences."
 
 (defun exwm-input--post-init ()
   "The second stage in the initialization of the input module."
+  (exwm--log)
   (exwm-input--update-global-prefix-keys))
 
 (defun exwm-input--exit ()
   "Exit the input module."
+  (exwm--log)
   (exwm-input--unset-simulation-keys)
   (remove-hook 'pre-command-hook #'exwm-input--on-pre-command)
   (remove-hook 'post-command-hook #'exwm-input--on-post-command)
diff --git a/exwm-layout.el b/exwm-layout.el
index b97c2f3ed..8b2fc2ae0 100644
--- a/exwm-layout.el
+++ b/exwm-layout.el
@@ -479,6 +479,7 @@ windows."
 
 See also `exwm-layout-enlarge-window'."
   (interactive "p")
+  (exwm--log "%s" delta)
   (exwm-layout-enlarge-window delta t))
 
 ;;;###autoload
@@ -487,6 +488,7 @@ See also `exwm-layout-enlarge-window'."
 
 See also `exwm-layout-enlarge-window'."
   (interactive "p")
+  (exwm--log "%s" delta)
   (exwm-layout-enlarge-window (- delta)))
 
 ;;;###autoload
@@ -495,6 +497,7 @@ See also `exwm-layout-enlarge-window'."
 
 See also `exwm-layout-enlarge-window'."
   (interactive "p")
+  (exwm--log "%s" delta)
   (exwm-layout-enlarge-window (- delta) t))
 
 ;;;###autoload
diff --git a/exwm-manage.el b/exwm-manage.el
index 365b94d55..7000c53a6 100644
--- a/exwm-manage.el
+++ b/exwm-manage.el
@@ -565,7 +565,7 @@ Would you like to kill it? "
     (with-slots (window x y width height
                         border-width sibling stack-mode value-mask)
         obj
-      (exwm--log "ConfigureRequest from #x%x (#x%x) @%dx%d%+d%+d; \
+      (exwm--log "#x%x (#x%x) @%dx%d%+d%+d; \
 border-width: %d; sibling: #x%x; stack-mode: %d"
                  window value-mask width height x y
                  border-width sibling stack-mode)
@@ -663,7 +663,7 @@ border-width: %d; sibling: #x%x; stack-mode: %d"
             (progn (xcb:+request exwm--connection
                        (make-instance 'xcb:MapWindow :window window))
                    (xcb:flush exwm--connection))
-          (exwm--log "MapRequest from #x%x" window)
+          (exwm--log "#x%x" window)
           (exwm-manage--manage-window window))))))
 
 (defun exwm-manage--on-UnmapNotify (data _synthetic)
@@ -705,7 +705,7 @@ border-width: %d; sibling: #x%x; stack-mode: %d"
     (exwm--log)
     (let ((obj (make-instance 'xcb:DestroyNotify)))
       (xcb:unmarshal obj data)
-      (exwm--log "DestroyNotify from #x%x" (slot-value obj 'window))
+      (exwm--log "#x%x" (slot-value obj 'window))
       (exwm-manage--unmanage-window (slot-value obj 'window)))))
 
 (defun exwm-manage--init ()
@@ -732,6 +732,7 @@ border-width: %d; sibling: #x%x; stack-mode: %d"
 
 (defun exwm-manage--exit ()
   "Exit the manage module."
+  (exwm--log)
   (dolist (pair exwm--id-buffer-alist)
     (exwm-manage--unmanage-window (car pair) 'quit))
   (remove-hook 'after-make-frame-functions #'exwm-manage--add-frame)
diff --git a/exwm-randr.el b/exwm-randr.el
index f488bd9de..a0fe959a7 100644
--- a/exwm-randr.el
+++ b/exwm-randr.el
@@ -123,12 +123,12 @@ corresponding monitors whenever the monitors are active.
                                         :width width
                                         :height height)
                 monitor-plist (plist-put monitor-plist monitor-name geometry))
+          (exwm--log "%s: %sx%s+%s+%s" monitor-name x y width height)
           ;; Save primary monitor when available (fallback to the first one).
           (when (or (/= 0 primary)
                     (not primary-monitor))
             (setq primary-monitor monitor-name)))))
     (exwm--log "Primary monitor: %s" primary-monitor)
-    (exwm--log "Monitors: %s" monitor-plist)
     (list primary-monitor monitor-plist)))
 
 ;;;###autoload
@@ -233,6 +233,7 @@ Refresh when any RandR 1.5 monitor changes."
 
 (defun exwm-randr--init ()
   "Initialize RandR extension and EXWM RandR module."
+  (exwm--log)
   (if (= 0 (slot-value (xcb:get-extension-data exwm--connection 'xcb:randr)
                        'present))
       (error "[EXWM] RandR extension is not supported by the server")
@@ -270,10 +271,12 @@ Refresh when any RandR 1.5 monitor changes."
 
 (defun exwm-randr--exit ()
   "Exit the RandR module."
+  (exwm--log)
   (remove-hook 'exwm-workspace-list-change-hook #'exwm-randr-refresh))
 
 (defun exwm-randr-enable ()
   "Enable RandR support for EXWM."
+  (exwm--log)
   (add-hook 'exwm-init-hook #'exwm-randr--init)
   (add-hook 'exwm-exit-hook #'exwm-randr--exit))
 
diff --git a/exwm-systemtray.el b/exwm-systemtray.el
index d3244ab8d..ea1673316 100644
--- a/exwm-systemtray.el
+++ b/exwm-systemtray.el
@@ -86,13 +86,13 @@ You shall use the default value if using auto-hide minibuffer."
 
 (defun exwm-systemtray--embed (icon)
   "Embed an icon."
-  (exwm--log "(System Tray) Try to embed #x%x" icon)
+  (exwm--log "Try to embed #x%x" icon)
   (let ((info (xcb:+request-unchecked+reply exwm-systemtray--connection
                   (make-instance 'xcb:xembed:get-_XEMBED_INFO
                                  :window icon)))
         width* height* visible)
     (when info
-      (exwm--log "(System Tray) Embed #x%x" icon)
+      (exwm--log "Embed #x%x" icon)
       (with-slots (width height)
           (xcb:+request-unchecked+reply exwm-systemtray--connection
               (make-instance 'xcb:GetGeometry :drawable icon))
@@ -101,7 +101,7 @@ You shall use the default value if using auto-hide minibuffer."
         (when (< width* exwm-systemtray--icon-min-size)
           (setq width* exwm-systemtray--icon-min-size
                 height* (round (* height (/ (float width*) width)))))
-        (exwm--log "(System Tray) Resize from %dx%d to %dx%d"
+        (exwm--log "Resize from %dx%d to %dx%d"
                    width height width* height*))
       ;; Add this icon to save-set.
       (xcb:+request exwm-systemtray--connection
@@ -151,7 +151,7 @@ You shall use the default value if using auto-hide minibuffer."
         ;; Default to visible.
         (setq visible t))
       (when visible
-        (exwm--log "(System Tray) Map the window")
+        (exwm--log "Map the window")
         (xcb:+request exwm-systemtray--connection
             (make-instance 'xcb:MapWindow :window icon)))
       (xcb:+request exwm-systemtray--connection
@@ -175,7 +175,7 @@ You shall use the default value if using auto-hide minibuffer."
 
 (defun exwm-systemtray--unembed (icon)
   "Unembed an icon."
-  (exwm--log "(System Tray) Unembed #x%x" icon)
+  (exwm--log "Unembed #x%x" icon)
   (xcb:+request exwm-systemtray--connection
       (make-instance 'xcb:UnmapWindow :window icon))
   (xcb:+request exwm-systemtray--connection
@@ -189,6 +189,7 @@ You shall use the default value if using auto-hide minibuffer."
 
 (defun exwm-systemtray--refresh ()
   "Refresh the system tray."
+  (exwm--log)
   ;; Make sure to redraw the embedder.
   (xcb:+request exwm-systemtray--connection
       (make-instance 'xcb:UnmapWindow
@@ -222,6 +223,7 @@ You shall use the default value if using auto-hide minibuffer."
 
 (defun exwm-systemtray--on-DestroyNotify (data _synthetic)
   "Unembed icons on DestroyNotify."
+  (exwm--log)
   (let ((obj (make-instance 'xcb:DestroyNotify)))
     (xcb:unmarshal obj data)
     (with-slots (window) obj
@@ -230,6 +232,7 @@ You shall use the default value if using auto-hide minibuffer."
 
 (defun exwm-systemtray--on-ReparentNotify (data _synthetic)
   "Unembed icons on ReparentNotify."
+  (exwm--log)
   (let ((obj (make-instance 'xcb:ReparentNotify)))
     (xcb:unmarshal obj data)
     (with-slots (window parent) obj
@@ -239,6 +242,7 @@ You shall use the default value if using auto-hide minibuffer."
 
 (defun exwm-systemtray--on-ResizeRequest (data _synthetic)
   "Resize the tray icon on ResizeRequest."
+  (exwm--log)
   (let ((obj (make-instance 'xcb:ResizeRequest))
         attr)
     (xcb:unmarshal obj data)
@@ -266,6 +270,7 @@ You shall use the default value if using auto-hide minibuffer."
 
 (defun exwm-systemtray--on-PropertyNotify (data _synthetic)
   "Map/Unmap the tray icon on PropertyNotify."
+  (exwm--log)
   (let ((obj (make-instance 'xcb:PropertyNotify))
         attr info visible)
     (xcb:unmarshal obj data)
@@ -279,7 +284,7 @@ You shall use the default value if using auto-hide minibuffer."
         (when info
           (setq visible (/= 0 (logand (slot-value info 'flags)
                                       xcb:xembed:MAPPED)))
-          (exwm--log "(System Tray) #x%x visible? %s" window visible)
+          (exwm--log "#x%x visible? %s" window visible)
           (if visible
               (xcb:+request exwm-systemtray--connection
                   (make-instance 'xcb:MapWindow :window window))
@@ -297,6 +302,7 @@ You shall use the default value if using auto-hide minibuffer."
       (when (eq type xcb:Atom:_NET_SYSTEM_TRAY_OPCODE)
         (setq data32 (slot-value data 'data32)
               opcode (elt data32 1))
+        (exwm--log "opcode: %s" opcode)
         (cond ((= opcode xcb:systemtray:opcode:REQUEST-DOCK)
                (unless (assoc (elt data32 2) exwm-systemtray--list)
                  (exwm-systemtray--embed (elt data32 2))))
@@ -304,10 +310,11 @@ You shall use the default value if using auto-hide minibuffer."
               ((or (= opcode xcb:systemtray:opcode:BEGIN-MESSAGE)
                    (= opcode xcb:systemtray:opcode:CANCEL-MESSAGE)))
               (t
-               (exwm--log "(System Tray) Unknown opcode message: %s" obj)))))))
+               (exwm--log "Unknown opcode message: %s" obj)))))))
 
 (defun exwm-systemtray--on-KeyPress (data _synthetic)
   "Forward all KeyPress events to Emacs frame."
+  (exwm--log)
   ;; This function is only executed when there's no autohide minibuffer,
   ;; a workspace frame has the input focus and the pointer is over a
   ;; tray icon.
@@ -325,6 +332,7 @@ You shall use the default value if using auto-hide minibuffer."
 
 (defun exwm-systemtray--on-workspace-switch ()
   "Reparent/Refresh the system tray in `exwm-workspace-switch-hook'."
+  (exwm--log)
   (unless (exwm-workspace--minibuffer-own-frame-p)
     (xcb:+request exwm-systemtray--connection
         (make-instance 'xcb:ReparentWindow
@@ -339,6 +347,7 @@ You shall use the default value if using auto-hide minibuffer."
 
 (defun exwm-systemtray--on-randr-refresh ()
   "Reposition/Refresh the system tray in `exwm-randr-refresh-hook'."
+  (exwm--log)
   (unless (exwm-workspace--minibuffer-own-frame-p)
     (xcb:+request exwm-systemtray--connection
         (make-instance 'xcb:ConfigureWindow
@@ -353,6 +362,7 @@ You shall use the default value if using auto-hide minibuffer."
 
 (cl-defun exwm-systemtray--init ()
   "Initialize system tray module."
+  (exwm--log)
   (cl-assert (not exwm-systemtray--connection))
   (cl-assert (not exwm-systemtray--list))
   (cl-assert (not exwm-systemtray--selection-owner-window))
@@ -493,6 +503,7 @@ You shall use the default value if using auto-hide minibuffer."
 
 (defun exwm-systemtray--exit ()
   "Exit the systemtray module."
+  (exwm--log)
   (when exwm-systemtray--connection
     ;; Hide & reparent out the embedder before disconnection to prevent
     ;; embedded icons from being reparented to an Emacs frame (which is the
@@ -521,6 +532,7 @@ You shall use the default value if using auto-hide minibuffer."
 
 (defun exwm-systemtray-enable ()
   "Enable system tray support for EXWM."
+  (exwm--log)
   (add-hook 'exwm-init-hook #'exwm-systemtray--init)
   (add-hook 'exwm-exit-hook #'exwm-systemtray--exit))
 
diff --git a/exwm-workspace.el b/exwm-workspace.el
index b8e48b258..42fbefbf1 100644
--- a/exwm-workspace.el
+++ b/exwm-workspace.el
@@ -307,7 +307,8 @@ NIL if FRAME is not a workspace"
                 ;; Make left/top processed first.
                 (push struts* exwm-workspace--struts)
               (setq exwm-workspace--struts
-                    (append exwm-workspace--struts (list struts*))))))))))
+                    (append exwm-workspace--struts (list struts*))))))))
+    (exwm--log "%s" exwm-workspace--struts)))
 
 (defun exwm-workspace--update-workareas ()
   "Update `exwm-workspace--workareas'."
@@ -371,6 +372,7 @@ NIL if FRAME is not a workspace"
     ;; Save the result.
     (setq exwm-workspace--workareas workareas)
     (xcb:flush exwm--connection))
+  (exwm--log "%s" exwm-workspace--workareas)
   (run-hooks 'exwm-workspace--update-workareas-hook))
 
 (defun exwm-workspace--set-active (frame active)
@@ -451,7 +453,8 @@ NIL if FRAME is not a workspace"
                        :window (frame-parameter exwm-workspace--minibuffer
                                                 'exwm-outer-id)
                        :value-mask xcb:ConfigWindow:Width
-                       :width width))))
+                       :width width))
+    (exwm--log "y: %s, width: %s" y width)))
 
 (defun exwm-workspace--switch-map-nth-prefix (&optional prefix-digits)
   "Allow selecting a workspace by number.
@@ -647,6 +650,7 @@ Passing a workspace frame as the first option is for internal use only."
      (t 0))))
   (unless frame-or-index
     (setq frame-or-index 0))
+  (exwm--log "%s" frame-or-index)
   (if (or (framep frame-or-index)
           (< frame-or-index (exwm-workspace--count)))
       (exwm-workspace-switch frame-or-index)
@@ -747,6 +751,7 @@ before it."
 
 INDEX must not exceed the current number of workspaces."
   (interactive)
+  (exwm--log "%s" index)
   (if (and index
            ;; No need to move if it's the last one.
            (< index (exwm-workspace--count)))
@@ -757,6 +762,7 @@ INDEX must not exceed the current number of workspaces."
 (defun exwm-workspace-delete (&optional frame-or-index)
   "Delete the workspace FRAME-OR-INDEX."
   (interactive)
+  (exwm--log "%s" frame-or-index)
   (when (< 1 (exwm-workspace--count))
     (delete-frame
      (if frame-or-index
@@ -765,6 +771,7 @@ INDEX must not exceed the current number of workspaces."
 
 (defun exwm-workspace--set-desktop (id)
   "Set _NET_WM_DESKTOP for X window ID."
+  (exwm--log "#x%x" id)
   (with-current-buffer (exwm--id->buffer id)
     (let ((desktop (exwm-workspace--position exwm--frame)))
       (setq exwm--desktop desktop)
@@ -789,6 +796,7 @@ INDEX must not exceed the current number of workspaces."
   (let ((frame (exwm-workspace--workspace-from-frame-or-index frame-or-index))
         old-frame container)
     (unless id (setq id (exwm--buffer->id (window-buffer))))
+    (exwm--log "Moving #x%x to %s" id frame-or-index)
     (with-current-buffer (exwm--id->buffer id)
       (unless (eq exwm--frame frame)
         (unless exwm-workspace-show-all-buffers
@@ -984,6 +992,7 @@ INDEX must not exceed the current number of workspaces."
 
 (defun exwm-workspace--x-create-frame (orig-fun params)
   "Set override-redirect on the frame created by `x-create-frame'."
+  (exwm--log)
   (let ((frame (funcall orig-fun params)))
     (xcb:+request exwm--connection
         (make-instance 'xcb:ChangeWindowAttributes
@@ -1005,6 +1014,7 @@ Please check `exwm-workspace--minibuffer-own-frame-p' first."
 (defun exwm-workspace-attach-minibuffer ()
   "Attach the minibuffer so that it always shows."
   (interactive)
+  (exwm--log)
   (when (and (exwm-workspace--minibuffer-own-frame-p)
              (not (exwm-workspace--minibuffer-attached-p)))
     ;; Reset the frame size.
@@ -1029,6 +1039,7 @@ Please check `exwm-workspace--minibuffer-own-frame-p' first."
 (defun exwm-workspace-detach-minibuffer ()
   "Detach the minibuffer so that it automatically hides."
   (interactive)
+  (exwm--log)
   (when (and (exwm-workspace--minibuffer-own-frame-p)
              (exwm-workspace--minibuffer-attached-p))
     (setq exwm-workspace--attached-minibuffer-height 0)
@@ -1046,6 +1057,7 @@ Please check `exwm-workspace--minibuffer-own-frame-p' first."
 (defun exwm-workspace-toggle-minibuffer ()
   "Attach the minibuffer if it's detached, or detach it if it's attached."
   (interactive)
+  (exwm--log)
   (when (exwm-workspace--minibuffer-own-frame-p)
     (if (exwm-workspace--minibuffer-attached-p)
         (exwm-workspace-detach-minibuffer)
@@ -1071,6 +1083,7 @@ Please check `exwm-workspace--minibuffer-own-frame-p' first."
       (when (and (integerp max-mini-window-height)
                  (> height max-mini-window-height))
         (setq height max-mini-window-height))
+      (exwm--log "%s" height)
       (set-frame-height exwm-workspace--minibuffer height))))
 
 (defun exwm-workspace--on-ConfigureNotify (data _synthetic)
@@ -1081,6 +1094,7 @@ Please check `exwm-workspace--minibuffer-own-frame-p' first."
     (with-slots (window height) obj
       (when (eq (frame-parameter exwm-workspace--minibuffer 'exwm-outer-id)
                 window)
+        (exwm--log)
         (when (and (floatp max-mini-window-height)
                    (> height (* max-mini-window-height
                                 (exwm-workspace--current-height))))
@@ -1122,6 +1136,7 @@ Please check `exwm-workspace--minibuffer-own-frame-p' first."
 
 (defun exwm-workspace--show-minibuffer ()
   "Show the minibuffer frame."
+  (exwm--log)
   ;; Cancel pending timer.
   (when exwm-workspace--display-echo-area-timer
     (cancel-timer exwm-workspace--display-echo-area-timer)
@@ -1143,6 +1158,7 @@ Please check `exwm-workspace--minibuffer-own-frame-p' first."
 
 (defun exwm-workspace--hide-minibuffer ()
   "Hide the minibuffer frame."
+  (exwm--log)
   ;; Hide the minibuffer frame.
   (if (exwm-workspace--minibuffer-attached-p)
       (xcb:+request exwm--connection
@@ -1164,6 +1180,7 @@ Please check `exwm-workspace--minibuffer-own-frame-p' first."
 
 (defun exwm-workspace--on-minibuffer-setup ()
   "Run in minibuffer-setup-hook to show the minibuffer and its container."
+  (exwm--log)
   (when (and (= 1 (minibuffer-depth))
              (not (exwm-workspace--client-p)))
     (add-hook 'post-command-hook #'exwm-workspace--update-minibuffer-height)
@@ -1185,6 +1202,7 @@ Please check `exwm-workspace--minibuffer-own-frame-p' first."
 
 (defun exwm-workspace--on-minibuffer-exit ()
   "Run in minibuffer-exit-hook to hide the minibuffer container."
+  (exwm--log)
   (when (and (= 1 (minibuffer-depth))
              (not (exwm-workspace--client-p)))
     (remove-hook 'post-command-hook #'exwm-workspace--update-minibuffer-height)
@@ -1216,6 +1234,7 @@ Please check `exwm-workspace--minibuffer-own-frame-p' first."
 
 (defun exwm-workspace--set-desktop-geometry ()
   "Set _NET_DESKTOP_GEOMETRY."
+  (exwm--log)
   ;; We don't support large desktop so it's the same with screen size.
   (xcb:+request exwm--connection
       (make-instance 'xcb:ewmh:set-_NET_DESKTOP_GEOMETRY
@@ -1225,6 +1244,7 @@ Please check `exwm-workspace--minibuffer-own-frame-p' first."
 
 (defun exwm-workspace--add-frame-as-workspace (frame)
   "Configure frame FRAME to be treated as a workspace."
+  (exwm--log "%s" frame)
   (setq exwm-workspace--list (nconc exwm-workspace--list (list frame)))
   (let ((outer-id (string-to-number (frame-parameter frame
                                                      'outer-window-id)))
@@ -1389,6 +1409,7 @@ Please check `exwm-workspace--minibuffer-own-frame-p' first."
 
 (defun exwm-workspace--update-ewmh-props ()
   "Update EWMH properties to match the workspace list."
+  (exwm--log)
   (let ((num-workspaces (exwm-workspace--count)))
     ;; Avoid setting 0 desktops.
     (when (= 0 num-workspaces)
@@ -1408,6 +1429,7 @@ Please check `exwm-workspace--minibuffer-own-frame-p' first."
 NEW-X-PARAMETERS is an alist of frame parameters, merged into current
 `window-system-default-frame-alist' for the X Window System.  The parameters are
 applied to all subsequently created X frames."
+  (exwm--log)
   ;; The parameters are modified in place; take current
   ;; ones or insert a new X-specific list.
   (let ((x-parameters (or (assq 'x window-system-default-frame-alist)
@@ -1427,6 +1449,7 @@ applied to all subsequently created X frames."
   (interactive "e"))
 
 (defun exwm-workspace--init-minibuffer-frame ()
+  (exwm--log)
   ;; Initialize workspaces without minibuffers.
   (setq exwm-workspace--minibuffer
         (make-frame '((window-system . x) (minibuffer . only)
@@ -1497,6 +1520,7 @@ applied to all subsequently created X frames."
               :test #'equal))
 
 (defun exwm-workspace--exit-minibuffer-frame ()
+  (exwm--log)
   ;; Only on minibuffer-frame.
   (remove-hook 'minibuffer-setup-hook #'exwm-workspace--on-minibuffer-setup)
   (remove-hook 'minibuffer-exit-hook #'exwm-workspace--on-minibuffer-exit)
@@ -1520,6 +1544,7 @@ applied to all subsequently created X frames."
 
 (defun exwm-workspace--init ()
   "Initialize workspace module."
+  (exwm--log)
   ;; Prevent unexpected exit
   (setq exwm-workspace--fullscreen-frame-count 0)
   (exwm-workspace--modify-all-x-frames-parameters
@@ -1584,6 +1609,7 @@ applied to all subsequently created X frames."
 
 (defun exwm-workspace--exit ()
   "Exit the workspace module."
+  (exwm--log)
   (when (exwm-workspace--minibuffer-own-frame-p)
     (exwm-workspace--exit-minibuffer-frame))
   (advice-remove 'x-create-frame #'exwm-workspace--x-create-frame)
@@ -1618,6 +1644,7 @@ applied to all subsequently created X frames."
 
 (defun exwm-workspace--post-init ()
   "The second stage in the initialization of the workspace module."
+  (exwm--log)
   (when exwm-workspace--client
     ;; Reset the 'fullscreen' frame parameter to make emacsclinet frames
     ;; fullscreen (even without the RandR module enabled).
diff --git a/exwm.el b/exwm.el
index e25506237..4b59b8b6b 100644
--- a/exwm.el
+++ b/exwm.el
@@ -107,6 +107,7 @@
 (defun exwm-reset ()
   "Reset the state of the selected window (non-fullscreen, line-mode, etc)."
   (interactive)
+  (exwm--log)
   (with-current-buffer (window-buffer)
     (when (derived-mode-p 'exwm-mode)
       (when (exwm-layout--fullscreen-p)
@@ -119,6 +120,7 @@
 (defun exwm-restart ()
   "Restart EXWM."
   (interactive)
+  (exwm--log)
   (when (exwm--confirm-kill-emacs "[EXWM] Restart? " 'no-check)
     (let* ((attr (process-attributes (emacs-pid)))
            (args (cdr (assq 'args attr)))
@@ -146,6 +148,7 @@
 
 (defun exwm--update-desktop (xwin)
   "Update _NET_WM_DESKTOP."
+  (exwm--log "#x%x" xwin)
   (with-current-buffer (exwm--id->buffer xwin)
     (let ((reply (xcb:+request-unchecked+reply exwm--connection
                      (make-instance 'xcb:ewmh:get-_NET_WM_DESKTOP
@@ -172,6 +175,7 @@
 
 (defun exwm--update-window-type (id &optional force)
   "Update _NET_WM_WINDOW_TYPE."
+  (exwm--log "#x%x" id)
   (with-current-buffer (exwm--id->buffer id)
     (unless (and exwm-window-type (not force))
       (let ((reply (xcb:+request-unchecked+reply exwm--connection
@@ -182,6 +186,7 @@
 
 (defun exwm--update-class (id &optional force)
   "Update WM_CLASS."
+  (exwm--log "#x%x" id)
   (with-current-buffer (exwm--id->buffer id)
     (unless (and exwm-instance-name exwm-class-name (not force))
       (let ((reply (xcb:+request-unchecked+reply exwm--connection
@@ -194,6 +199,7 @@
 
 (defun exwm--update-utf8-title (id &optional force)
   "Update _NET_WM_NAME."
+  (exwm--log "#x%x" id)
   (with-current-buffer (exwm--id->buffer id)
     (when (or force (not exwm-title))
       (let ((reply (xcb:+request-unchecked+reply exwm--connection
@@ -206,6 +212,7 @@
 
 (defun exwm--update-ctext-title (id &optional force)
   "Update WM_NAME."
+  (exwm--log "#x%x" id)
   (with-current-buffer (exwm--id->buffer id)
     (unless (or exwm--title-is-utf8
                 (and exwm-title (not force)))
@@ -218,11 +225,13 @@
 
 (defun exwm--update-title (id)
   "Update _NET_WM_NAME or WM_NAME."
+  (exwm--log "#x%x" id)
   (exwm--update-utf8-title id)
   (exwm--update-ctext-title id))
 
 (defun exwm--update-transient-for (id &optional force)
   "Update WM_TRANSIENT_FOR."
+  (exwm--log "#x%x" id)
   (with-current-buffer (exwm--id->buffer id)
     (unless (and exwm-transient-for (not force))
       (let ((reply (xcb:+request-unchecked+reply exwm--connection
@@ -233,6 +242,7 @@
 
 (defun exwm--update-normal-hints (id &optional force)
   "Update WM_NORMAL_HINTS."
+  (exwm--log "#x%x" id)
   (with-current-buffer (exwm--id->buffer id)
     (unless (and (not force)
                  (or exwm--normal-hints-x exwm--normal-hints-y
@@ -280,6 +290,7 @@
 
 (defun exwm--update-hints (id &optional force)
   "Update WM_HINTS."
+  (exwm--log "#x%x" id)
   (with-current-buffer (exwm--id->buffer id)
     (unless (and (not force) exwm--hints-input exwm--hints-urgency)
       (let ((reply (xcb:+request-unchecked+reply exwm--connection
@@ -301,6 +312,7 @@
 
 (defun exwm--update-protocols (id &optional force)
   "Update WM_PROTOCOLS."
+  (exwm--log "#x%x" id)
   (with-current-buffer (exwm--id->buffer id)
     (unless (and exwm--protocols (not force))
       (let ((reply (xcb:+request-unchecked+reply exwm--connection
@@ -311,6 +323,7 @@
 
 (defun exwm--update-struts-legacy (id)
   "Update _NET_WM_STRUT."
+  (exwm--log "#x%x" id)
   (let ((pair (assq id exwm-workspace--id-struts-alist))
         reply struts)
     (unless (and pair (< 4 (length (cdr pair))))
@@ -331,6 +344,7 @@
 
 (defun exwm--update-struts-partial (id)
   "Update _NET_WM_STRUT_PARTIAL."
+  (exwm--log "#x%x" id)
   (let ((reply (xcb:+request-unchecked+reply exwm--connection
                    (make-instance 'xcb:ewmh:get-_NET_WM_STRUT_PARTIAL
                                   :window id)))
@@ -350,6 +364,7 @@
 
 (defun exwm--update-struts (id)
   "Update _NET_WM_STRUT_PARTIAL or _NET_WM_STRUT."
+  (exwm--log "#x%x" id)
   (exwm--update-struts-partial id)
   (exwm--update-struts-legacy id))
 
@@ -386,9 +401,10 @@
               ((= atom xcb:Atom:WM_PROTOCOLS)
                (exwm--update-protocols id t))
               ((= atom xcb:Atom:_NET_WM_USER_TIME)) ;ignored
-              (t (exwm--log "Unhandled PropertyNotify: %s(%d)"
-                            (x-get-atom-name atom exwm-workspace--current)
-                            atom)))))))
+              (t
+               (exwm--log "Unhandled: %s(%d)"
+                          (x-get-atom-name atom exwm-workspace--current)
+                          atom)))))))
 
 (defun exwm--on-ClientMessage (raw-data _synthetic)
   "Handle ClientMessage event."
@@ -534,11 +550,13 @@
                    (= (elt data 0) xcb:icccm:WM_STATE:IconicState))
           (with-current-buffer buffer
             (bury-buffer)))))
-     (t (exwm--log "Unhandled client message: %s" obj)))))
+     (t
+      (exwm--log "Unhandled: %s(%d)"
+                 (x-get-atom-name type exwm-workspace--current) type)))))
 
 (defun exwm--on-SelectionClear (data _synthetic)
   "Handle SelectionClear events."
-  (exwm--log "SelectionClear")
+  (exwm--log)
   (let ((obj (make-instance 'xcb:SelectionClear))
         owner selection)
     (xcb:unmarshal obj data)
@@ -550,6 +568,7 @@
 
 (defun exwm--init-icccm-ewmh ()
   "Initialize ICCCM/EWMH support."
+  (exwm--log)
   ;; Handle PropertyNotify event
   (xcb:+event exwm--connection 'xcb:PropertyNotify #'exwm--on-PropertyNotify)
   ;; Handle relevant client messages
@@ -693,6 +712,7 @@
 
 REPLACE specifies what to do in case there already is a window
 manager.  If t, replace it, if nil, abort and ask the user if `ask'."
+  (exwm--log "%s" replace)
   (with-slots (owner)
       (xcb:+request-unchecked+reply exwm--connection
           (make-instance 'xcb:GetSelectionOwner
@@ -767,6 +787,7 @@ manager.  If t, replace it, if nil, abort and ask the user if `ask'."
 (cl-defun exwm-init (&optional frame)
   "Initialize EXWM."
   (interactive)
+  (exwm--log "%s" frame)
   (if frame
       ;; The frame might not be selected if it's created by emacslicnet.
       (select-frame-set-input-focus frame)
@@ -825,6 +846,7 @@ manager.  If t, replace it, if nil, abort and ask the user if `ask'."
 (defun exwm-exit ()
   "Exit EXWM."
   (interactive)
+  (exwm--log)
   (run-hooks 'exwm-exit-hook)
   (setq confirm-kill-emacs nil)
   ;; Exit modules.
@@ -840,6 +862,7 @@ manager.  If t, replace it, if nil, abort and ask the user if `ask'."
 
 (defun exwm-enable (&optional undo)
   "Enable/Disable EXWM."
+  (exwm--log "%s" undo)
   (pcase undo
     (`undo                              ;prevent reinitialization
      (remove-hook 'window-setup-hook #'exwm-init)
@@ -866,6 +889,7 @@ manager.  If t, replace it, if nil, abort and ask the user if `ask'."
 
 (defun exwm--server-stop ()
   "Stop the subordinate Emacs server."
+  (exwm--log)
   (server-force-delete exwm--server-name)
   (when exwm--server-process
     (delete-process exwm--server-process)
@@ -874,6 +898,7 @@ manager.  If t, replace it, if nil, abort and ask the user if `ask'."
 (defun exwm--server-eval-at (&rest args)
   "Wrapper of `server-eval-at' used to advice subrs."
   ;; Start the subordinate Emacs server if it's not alive
+  (exwm--log "%s" args)
   (unless (server-running-p exwm--server-name)
     (when exwm--server-process (delete-process exwm--server-process))
     (setq exwm--server-process
@@ -912,6 +937,7 @@ manager.  If t, replace it, if nil, abort and ask the user if `ask'."
 
 (defun exwm--confirm-kill-emacs (prompt &optional force)
   "Confirm before exiting Emacs."
+  (exwm--log)
   (when (cond
          ((and force (not (eq force 'no-check)))
           ;; Force killing Emacs.