2 files changed, 14 insertions, 3 deletions

diff --git a/firmware/drivers/lcd-bitmap-common.c b/firmware/drivers/lcd-bitmap-common.c
index 48710df49b..4fe095096f 100644
--- a/firmware/drivers/lcd-bitmap-common.c
+++ b/firmware/drivers/lcd-bitmap-common.c
@@ -178,7 +178,13 @@ struct viewport *LCDFN(get_viewport)(bool *is_default)
 
 void LCDFN(update_viewport)(void)
 {
+
     struct viewport* vp = LCDFN(current_viewport);
+    if ((vp->flags & VP_FLAG_OWNER_UPDATE) == VP_FLAG_OWNER_UPDATE)
+    {
+        logf("%s ignored -  owner update", __func__);
+        return;
+    }
     int x, y;
     if (vp->buffer->stride != LCDFN(framebuffer_default.stride))
     {
@@ -196,7 +202,11 @@ void LCDFN(update_viewport)(void)
 void LCDFN(update_viewport_rect)(int x, int y, int width, int height)
 {
     struct viewport* vp = LCDFN(current_viewport);
-
+    if ((vp->flags & VP_FLAG_OWNER_UPDATE) == VP_FLAG_OWNER_UPDATE)
+    {
+        logf("%s ignored -  owner update", __func__);
+        return;
+    }
     /* handle the case of viewport with differing stride from main screen */
     if (vp->buffer->stride != LCDFN(framebuffer_default.stride))
     {
diff --git a/firmware/export/lcd.h b/firmware/export/lcd.h
index 13165129b1..2f8fd3e751 100644
--- a/firmware/export/lcd.h
+++ b/firmware/export/lcd.h
@@ -178,8 +178,9 @@ struct frame_buffer_t {
 
 #define VP_IS_RTL(vp) (((vp)->flags & VP_FLAG_ALIGNMENT_MASK) == VP_FLAG_ALIGN_RIGHT)
 
-#define VP_FLAG_VP_DIRTY 0x4000
-#define VP_FLAG_CLEAR_FLAG 0x8000
+#define VP_FLAG_OWNER_UPDATE 0x2000 /* block update_vp functions */
+#define VP_FLAG_VP_DIRTY     0x4000
+#define VP_FLAG_CLEAR_FLAG   0x8000
 #define VP_FLAG_VP_SET_CLEAN (VP_FLAG_CLEAR_FLAG | VP_FLAG_VP_DIRTY)
 
 struct viewport {