X-Git-Url: https://git.ayoreis.com/hackapet/Adafruit_Blinka_Displayio.git/blobdiff_plain/11e8cc62b210c761fd42e6cca723835654811776..b6c1453b93053cbf2fb6aae6f09fdb8f9b9e4345:/displayio/_display.py

diff --git a/displayio/_display.py b/displayio/_display.py
index f2d02cf..8551f8c 100644
--- a/displayio/_display.py
+++ b/displayio/_display.py
@@ -338,7 +338,7 @@ class Display:
 
     def _refresh_area(self, area) -> bool:
         """Loop through dirty areas and redraw that area."""
-        # pylint: disable=too-many-locals
+        # pylint: disable=too-many-locals, too-many-branches
 
         clipped = Area()
         # Clip the area to the display by overlapping the areas.
@@ -404,6 +404,11 @@ class Display:
             buffer = memoryview(bytearray([0] * (buffer_size * 4)))
             mask = memoryview(bytearray([0] * mask_length))
             self._core.fill_area(subrectangle, mask, buffer)
+
+            # Can't acquire display bus; skip the rest of the data.
+            if not self._core.bus_free():
+                return False
+
             self._core.begin_transaction()
             self._send_pixels(buffer[:subrectangle_size_bytes])
             self._core.end_transaction()