diff --git a/screen-write.c b/screen-write.c
index c23f2d508..9fd14af52 100644
--- a/screen-write.c
+++ b/screen-write.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: screen-write.c,v 1.302 2026/10/16 07:59:06 nicm Exp $ */
+/* $OpenBSD: screen-write.c,v 1.303 2026/10/16 11:33:44 nicm Exp $ */
 
 /*
  * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
@@ -1613,35 +1613,12 @@ screen_write_insertline(struct screen_write_ctx *ctx, u_int ny, u_int bg)
 	struct screen	*s = ctx->s;
 	struct grid	*gd = s->grid;
 	struct tty_ctx	 ttyctx;
-	u_int		 sy = screen_size_y(s);
 
 	if (ny == 0)
 		ny = 1;
 
-	if (s->cy < s->rupper || s->cy > s->rlower) {
-		if (ny > sy - s->cy)
-			ny = sy - s->cy;
-		if (ny == 0)
-			return;
-
-		screen_write_initctx(ctx, &ttyctx, 1, 1);
-		ttyctx.bg = bg;
-
-		grid_view_insert_lines(gd, s->cy, ny, bg);
-
-		screen_write_collect_flush(ctx, 0, __func__);
-		ttyctx.n = ny;
-
-		if (!screen_write_should_draw_lines(ctx, s->cy, sy - s->cy))
-			return;
-		if (~ttyctx.flags & TTY_CTX_PANE_OBSCURED || ctx->wp == NULL) {
-			tty_write(tty_cmd_insertline, &ttyctx);
-			return;
-		}
-
-		screen_write_redraw_pane(ctx, &ttyctx);
+	if (s->cy < s->rupper || s->cy > s->rlower)
 		return;
-	}
 
 	if (ny > s->rlower + 1 - s->cy)
 		ny = s->rlower + 1 - s->cy;
@@ -1651,10 +1628,7 @@ screen_write_insertline(struct screen_write_ctx *ctx, u_int ny, u_int bg)
 	screen_write_initctx(ctx, &ttyctx, 1, 1);
 	ttyctx.bg = bg;
 
-	if (s->cy < s->rupper || s->cy > s->rlower)
-		grid_view_insert_lines(gd, s->cy, ny, bg);
-	else
-		grid_view_insert_lines_region(gd, s->rlower, s->cy, ny, bg);
+	grid_view_insert_lines_region(gd, s->rlower, s->cy, ny, bg);
 
 	screen_write_collect_flush(ctx, 0, __func__);
 	ttyctx.n = ny;
@@ -1676,36 +1650,13 @@ screen_write_deleteline(struct screen_write_ctx *ctx, u_int ny, u_int bg)
 	struct screen	*s = ctx->s;
 	struct grid	*gd = s->grid;
 	struct tty_ctx	 ttyctx;
-	u_int		 sy = screen_size_y(s), ry;
+	u_int		 ry;
 
 	if (ny == 0)
 		ny = 1;
 
-	if (s->cy < s->rupper || s->cy > s->rlower) {
-		if (ny > sy - s->cy)
-			ny = sy - s->cy;
-		if (ny == 0)
-			return;
-
-		screen_write_initctx(ctx, &ttyctx, 1, 1);
-		ttyctx.bg = bg;
-
-		grid_view_delete_lines(gd, s->cy, ny, bg);
-
-		screen_write_collect_flush(ctx, 0, __func__);
-		ttyctx.n = ny;
-
-		ry = s->rlower + 1 - s->rupper;
-		if (!screen_write_should_draw_lines(ctx, s->rupper, ry))
-			return;
-		if (~ttyctx.flags & TTY_CTX_PANE_OBSCURED || ctx->wp == NULL) {
-			tty_write(tty_cmd_deleteline, &ttyctx);
-			return;
-		}
-
-		screen_write_redraw_pane(ctx, &ttyctx);
+	if (s->cy < s->rupper || s->cy > s->rlower)
 		return;
-	}
 
 	ry = s->rlower + 1 - s->cy;
 	if (ny > ry)
@@ -1716,10 +1667,7 @@ screen_write_deleteline(struct screen_write_ctx *ctx, u_int ny, u_int bg)
 	screen_write_initctx(ctx, &ttyctx, 1, 1);
 	ttyctx.bg = bg;
 
-	if (s->cy < s->rupper || s->cy > s->rlower)
-		grid_view_delete_lines(gd, s->cy, ny, bg);
-	else
-		grid_view_delete_lines_region(gd, s->rlower, s->cy, ny, bg);
+	grid_view_delete_lines_region(gd, s->rlower, s->cy, ny, bg);
 
 	screen_write_collect_flush(ctx, 0, __func__);
 	ttyctx.n = ny;