Applied cursorwarp patch for multimonitor.

dwm.c

@@ -866,6 +866,8 @@ focusmon(const Arg *arg)
 	unfocus(selmon->sel, 0);
 	selmon = m;
 	focus(NULL);
+	if (selmon->sel)
+		XWarpPointer(dpy, None, selmon->sel->win, 0, 0, 0, 0, selmon->sel->w/2, selmon->sel->h/2);
 }
 
 void
@@ -891,6 +893,7 @@ focusstack(const Arg *arg)
 	if (c) {
 		focus(c);
 		restack(selmon);
+		XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w/2, c->h/2);
 	}
 }
 

patches/dwm-cursorwarp-20210222-61bb8b2.diff

@@ -0,0 +1,33 @@
+From 1e4936416fa5517fe447e3388e1d44c913e29f56 Mon Sep 17 00:00:00 2001
+From: Markus Dam <markus.dam123@gmail.com>
+Date: Mon, 22 Feb 2021 13:40:13 +0100
+Subject: [PATCH] Add cursor warping
+
+---
+ dwm.c | 3 +++
+ 1 file changed, 3 insertions(+)
+
+diff --git a/dwm.c b/dwm.c
+index 331a309..c80ef8a 100644
+--- a/dwm.c
++++ b/dwm.c
+@@ -882,6 +882,8 @@ focusmon(const Arg *arg)
+ 	unfocus(selmon->sel, 0);
+ 	selmon = m;
+ 	focus(NULL);
++	if (selmon->sel)
++		XWarpPointer(dpy, None, selmon->sel->win, 0, 0, 0, 0, selmon->sel->w/2, selmon->sel->h/2);
+ }
+ 
+ void
+@@ -906,6 +908,7 @@ focusstack(const Arg *arg)
+ 	if (c) {
+ 		focus(c);
+ 		restack(selmon);
++		XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w/2, c->h/2);
+ 	}
+ }
+ 
+-- 
+2.30.1
+