diff --git a/tridoracpu/Makefile b/tridoracpu/Makefile
index 828556f..262b5ac 100644
--- a/tridoracpu/Makefile
+++ b/tridoracpu/Makefile
@@ -24,8 +24,10 @@ srcs = \
     $(SRCDIR)/sdspi.v \
     $(SRCDIR)/stackcpu.v \
     $(SRCDIR)/stack.v \
-    $(SRCDIR)/uart.v \
-    $(SRCDIR)/vgafb.v
+    $(SRCDIR)/uart.v
+
+# also modify top.v to enable vgafb
+#srcs += $(SRCDIR)/vgafb.v
 
 # for CCGMA1-EVB
 srcs += $(SRCDIR)/cpuclk_ccgm.v $(SRCDIR)/top_ccgm.v $(SRCDIR)/mem_ccgm.v
diff --git a/tridoracpu/tridoracpu.srcs/top_ccgm.v b/tridoracpu/tridoracpu.srcs/top_ccgm.v
index 9cbdaa8..3ddc09d 100644
--- a/tridoracpu/tridoracpu.srcs/top_ccgm.v
+++ b/tridoracpu/tridoracpu.srcs/top_ccgm.v
@@ -5,7 +5,7 @@
 //`define clock clk
 //`define clkfreq 100000000
 //`define clock clk_1hz
-`define ENABLE_VGAFB
+//`define ENABLE_VGAFB
 //`define ENABLE_MICROSD
 
 module top(