From 7eeef88eec86a156ecccac510a1b66d60483f395 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen
Date: Mon, 4 Sep 2017 09:28:49 +0300
Subject: kmstest: add help text about env variables

---
 utils/kmstest.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/utils/kmstest.cpp b/utils/kmstest.cpp
index 34fb352..f9486a4 100644
--- a/utils/kmstest.cpp
+++ b/utils/kmstest.cpp
@@ -381,6 +381,10 @@ static const char* usage_str =
 		"    kmstest -p 400x400 -f XR24\n\n"
 		"Test pattern on the second connector with default mode:\n"
 		"    kmstest -c 1\n"
+		"\n"
+		"Environmental variables:\n"
+		"    KMSXX_DISABLE_UNIVERSAL_PLANES    Don't enable universal planes even if available\n"
+		"    KMSXX_DISABLE_ATOMIC              Don't enable atomic modesetting even if available\n"
 		;
 
 static void usage()
-- 
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