gamma.py: show a test pattern

diff --git a/py/gamma.py b/py/gamma.py
index 69722ce8c9057dee7b294bf47e72a4088689cd36..c8da18fcb1af665a693349b493245e30529c4467 100644 (file)
--- a/py/gamma.py
+++ b/py/gamma.py
@@ -12,6 +12,12 @@ card = pykms.Card()
 conn = card.get_first_connected_connector()
 mode = conn.get_default_mode()
 crtc = conn.get_current_crtc()
+mode = conn.get_default_mode()
+
+fb = pykms.DumbFramebuffer(card, mode.hdisplay, mode.vdisplay, "XR24");
+pykms.draw_test_pattern(fb);
+
+crtc.set_mode(conn, fb, mode)
 
 arr = bytearray(256*2*4)
 view = memoryview(arr).cast("H")