diff --git a/drivers/gpu/drm/drm_vblank.c b/drivers/gpu/drm/drm_vblank.c
index 09c1c4ff93ca..511d105f0008 100644
--- a/drivers/gpu/drm/drm_vblank.c
+++ b/drivers/gpu/drm/drm_vblank.c
@@ -942,7 +942,7 @@ static int drm_vblank_enable(struct drm_device *dev, unsigned int pipe)
 		 * prevent double-accounting of same vblank interval.
 		 */
 		ret = __enable_vblank(dev, pipe);
-		DRM_DEBUG("enabling vblank on crtc %u, ret: %d\n", pipe, ret);
+		DRM_INFO("%s: enabling vblank on crtc %u, ret: %d\n", __func__, pipe, ret);
 		if (ret) {
 			atomic_dec(&vblank->refcount);
 		} else {
@@ -1117,7 +1117,8 @@ void drm_crtc_vblank_off(struct drm_crtc *crtc)
 	spin_lock_irqsave(&dev->event_lock, irqflags);
 
 	spin_lock(&dev->vbl_lock);
-	DRM_DEBUG_VBL("crtc %d, vblank enabled %d, inmodeset %d\n",
+	WARN_ON(1);
+	DRM_INFO("%s: crtc %d, vblank enabled %d, inmodeset %d\n", __func__,
 		      pipe, vblank->enabled, vblank->inmodeset);
 
 	/* Avoid redundant vblank disables without previous
@@ -1213,7 +1214,8 @@ void drm_crtc_vblank_on(struct drm_crtc *crtc)
 		return;
 
 	spin_lock_irqsave(&dev->vbl_lock, irqflags);
-	DRM_DEBUG_VBL("crtc %d, vblank enabled %d, inmodeset %d\n",
+	WARN_ON(1);
+	DRM_INFO("%s: crtc %d, vblank enabled %d, inmodeset %d\n", __func__,
 		      pipe, vblank->enabled, vblank->inmodeset);
 
 	/* Drop our private "prevent drm_vblank_get" refcount */