From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Thu, 29 Aug 2013 16:55:13 +0000 (+0100)
Subject: kms_flip: Set everything to zero to disable a CRTC
X-Git-Tag: intel-gpu-tools-1.4~62
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=a60f9300181496e5539f6914c9074e6d1aed0fe3;p=platform%2Fupstream%2Fintel-gpu-tools.git

kms_flip: Set everything to zero to disable a CRTC

Just setting fb=0 is not enough as the kernel thinks userspace is
insane.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
---

diff --git a/tests/kms_flip.c b/tests/kms_flip.c
index 0b8a0a8..9f02442 100644
--- a/tests/kms_flip.c
+++ b/tests/kms_flip.c
@@ -718,9 +718,17 @@ static int set_mode(struct test_output *o, int fb, int x, int y)
 	int n;
 
 	for (n = 0; n < o->count; n++) {
-		if (drmModeSetCrtc(drm_fd, o->_crtc[n], fb,
-				   x, y, &o->_connector[n], 1, &o->kmode[n]))
-			return -1;
+		if (fb == 0) {
+			if (drmModeSetCrtc(drm_fd, o->_crtc[n],
+					   0, 0, 0,
+					   0, 0, 0))
+				return -1;
+		} else {
+			if (drmModeSetCrtc(drm_fd, o->_crtc[n],
+					   fb, x, y,
+					   &o->_connector[n], 1, &o->kmode[n]))
+				return -1;
+		}
 	}
 
 	return 0;