Index: uspace/lib/ipcgfx/src/client.c
===================================================================
--- uspace/lib/ipcgfx/src/client.c	(revision fc4abcaefa9a26ceb2de3a504ef4a4ef4e39e201)
+++ uspace/lib/ipcgfx/src/client.c	(revision fe40b67572ac2e5cccf0f269ed3eef05152f67f1)
@@ -1,4 +1,4 @@
 /*
- * Copyright (c) 2019 Jiri Svoboda
+ * Copyright (c) 2021 Jiri Svoboda
  * All rights reserved.
  *
@@ -47,4 +47,5 @@
 static errno_t ipc_gc_set_color(void *, gfx_color_t *);
 static errno_t ipc_gc_fill_rect(void *, gfx_rect_t *);
+static errno_t ipc_gc_update(void *);
 static errno_t ipc_gc_bitmap_create(void *, gfx_bitmap_params_t *,
     gfx_bitmap_alloc_t *, void **);
@@ -56,4 +57,5 @@
 	.set_color = ipc_gc_set_color,
 	.fill_rect = ipc_gc_fill_rect,
+	.update = ipc_gc_update,
 	.bitmap_create = ipc_gc_bitmap_create,
 	.bitmap_destroy = ipc_gc_bitmap_destroy,
@@ -103,4 +105,23 @@
 	rc = async_req_4_0(exch, GC_FILL_RECT, rect->p0.x, rect->p0.y,
 	    rect->p1.x, rect->p1.y);
+	async_exchange_end(exch);
+
+	return rc;
+}
+
+/** Update display on IPC GC.
+ *
+ * @param arg IPC GC
+ *
+ * @return EOK on success or an error code
+ */
+static errno_t ipc_gc_update(void *arg)
+{
+	ipc_gc_t *ipcgc = (ipc_gc_t *) arg;
+	async_exch_t *exch;
+	errno_t rc;
+
+	exch = async_exchange_begin(ipcgc->sess);
+	rc = async_req_0_0(exch, GC_UPDATE);
 	async_exchange_end(exch);
 
Index: uspace/lib/ipcgfx/src/server.c
===================================================================
--- uspace/lib/ipcgfx/src/server.c	(revision fc4abcaefa9a26ceb2de3a504ef4a4ef4e39e201)
+++ uspace/lib/ipcgfx/src/server.c	(revision fe40b67572ac2e5cccf0f269ed3eef05152f67f1)
@@ -1,4 +1,4 @@
 /*
- * Copyright (c) 2019 Jiri Svoboda
+ * Copyright (c) 2021 Jiri Svoboda
  * All rights reserved.
  *
@@ -86,4 +86,12 @@
 }
 
+static void gc_update_srv(ipc_gc_srv_t *srvgc, ipc_call_t *call)
+{
+	errno_t rc;
+
+	rc = gfx_update(srvgc->gc);
+	async_answer_0(call, rc);
+}
+
 static void gc_bitmap_create_srv(ipc_gc_srv_t *srvgc, ipc_call_t *icall)
 {
@@ -358,4 +366,7 @@
 		case GC_FILL_RECT:
 			gc_fill_rect_srv(&srvgc, &call);
+			break;
+		case GC_UPDATE:
+			gc_update_srv(&srvgc, &call);
 			break;
 		case GC_BITMAP_CREATE: