===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/tmux/tty.c,v
retrieving revision 1.333
retrieving revision 1.334
diff -u -r1.333 -r1.334
--- src/usr.bin/tmux/tty.c	2019/11/14 07:56:32	1.333
+++ src/usr.bin/tmux/tty.c	2019/11/28 09:05:34	1.334
@@ -1,4 +1,4 @@
-/* $OpenBSD: tty.c,v 1.333 2019/11/14 07:56:32 nicm Exp $ */
+/* $OpenBSD: tty.c,v 1.334 2019/11/28 09:05:34 nicm Exp $ */
 
 /*
  * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
@@ -127,29 +127,40 @@
 {
 	struct client	*c = tty->client;
 	struct winsize	 ws;
-	u_int		 sx, sy;
+	u_int		 sx, sy, xpixel, ypixel;
 
 	if (ioctl(tty->fd, TIOCGWINSZ, &ws) != -1) {
 		sx = ws.ws_col;
-		if (sx == 0)
+		if (sx == 0) {
 			sx = 80;
+			xpixel = 0;
+		} else
+			xpixel = ws.ws_xpixel / sx;
 		sy = ws.ws_row;
-		if (sy == 0)
+		if (sy == 0) {
 			sy = 24;
+			ypixel = 0;
+		} else
+			ypixel = ws.ws_ypixel / sy;
 	} else {
 		sx = 80;
 		sy = 24;
+		xpixel = 0;
+		ypixel = 0;
 	}
-	log_debug("%s: %s now %ux%u", __func__, c->name, sx, sy);
-	tty_set_size(tty, sx, sy);
+	log_debug("%s: %s now %ux%u (%ux%u)", __func__, c->name, sx, sy,
+	    xpixel, ypixel);
+	tty_set_size(tty, sx, sy, xpixel, ypixel);
 	tty_invalidate(tty);
 }
 
 void
-tty_set_size(struct tty *tty, u_int sx, u_int sy)
+tty_set_size(struct tty *tty, u_int sx, u_int sy, u_int xpixel, u_int ypixel)
 {
 	tty->sx = sx;
 	tty->sy = sy;
+	tty->xpixel = xpixel;
+	tty->ypixel = ypixel;
 }
 
 static void