From b003afc1ed681288e479bd9b7cb3aef1513e0058 Mon Sep 17 00:00:00 2001
From: Luke Shumaker <lukeshu@lukeshu.com>
Date: Tue, 29 Aug 2017 18:31:13 -0400
Subject: Flush the Xlib buffer after setting gamma.

Before I added the dirty tracking, this wasn't necessary because it filled
the buffer very frequently.  But now, with it optimizing out calls, I was
seeing mysterious lag.
---
 ggamma.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/ggamma.c b/ggamma.c
index de0192e..1e3ef3c 100644
--- a/ggamma.c
+++ b/ggamma.c
@@ -121,6 +121,7 @@ int main(int argc, char *argv[]) {
 			
 	void flush(void) {
 		XRRSetCrtcGamma(display, crtc, gamma);
+		XFlush(display);
 	}
 	GtkWidget *curve;
 
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