diff --git a/sys/scandoubler.v b/sys/scandoubler.v
index f0728fc..e2b15c7 100644
--- a/sys/scandoubler.v
+++ b/sys/scandoubler.v
@@ -52,7 +52,7 @@ module scandoubler #(parameter LENGTH, parameter HALF_DEPTH)
 
 localparam DWIDTH = HALF_DEPTH ? 3 : 7;
 
-assign vs_out = vs_in;
+assign vs_out = vso[3];
 assign ce_pix_out = ce_x4;
 
 //Compensate picture shift after HQ2x
@@ -117,6 +117,7 @@ reg [DWIDTH:0] r_d;
 reg [DWIDTH:0] g_d;
 reg [DWIDTH:0] b_d;
 
+reg [3:0] vso;
 
 always @(posedge clk_sys) begin
 
@@ -143,6 +144,7 @@ always @(posedge clk_sys) begin
 
 		// falling edge of hsync indicates start of line
 		if(hs && !hs_in) begin
+			vso <= (vso<<1) | vs_in;
 			hs_max <= {hcnt,1'b1};
 			hcnt <= 0;
 		end else begin
diff --git a/sys/sys_top.v b/sys/sys_top.v
index 7b0b3ad..6281d97 100644
--- a/sys/sys_top.v
+++ b/sys/sys_top.v
@@ -718,7 +718,7 @@ vga_out vga_out
 `ifdef LITE
 	.din(vga_q)
 `else
-	.din(vga_scaler ? HDMI_TX_D : vga_q)
+	.din(vga_scaler ? {24{HDMI_TX_DE}} & HDMI_TX_D : vga_q)
 `endif
 );
 
diff --git a/sys/video_mixer.sv b/sys/video_mixer.sv
index 6babc3e..8f48f11 100644
--- a/sys/video_mixer.sv
+++ b/sys/video_mixer.sv
@@ -160,7 +160,7 @@ always @(posedge clk_sys) begin
 	VGA_HS <= hs;
 
 	old_hde <= hde;
-	if(~old_hde && hde && vde) VGA_DE <= 1;
+	if(~old_hde && hde) VGA_DE <= vde;
 	if(old_hde && ~hde) VGA_DE <= 0;
 end