--- /dev/null
+From b1829ce962aa4e13d737edb54130bdce05f068f0 Mon Sep 17 00:00:00 2001
+From: Karthik Ramanan <a0393906@ti.com>
+Date: Wed, 17 Dec 2014 09:21:49 +0530
+Subject: [PATCH] weston: Enabling DRM backend with multiple displays
+
+There are three main issues that this patch tries to address
+
+ 1. Black screen when running weston
+ 2. Support for multiple displays
+ 3. Handling missing VBlanks
+
+There is an issue with missing VBlanks for LCD and
+HDMI connectors which leads to display not getting refreshed.
+This patch can be considered as a workaround.
+
+Signed-off-by: Karthik Ramanan <a0393906@ti.com>
+---
+ src/compositor-drm.c | 10 ++++++++--
+ 1 files changed, 8 insertions(+), 2 deletions(-)
+
+diff --git a/src/compositor-drm.c b/src/compositor-drm.c
+index e4496e7..3b22aa3 100644
+--- a/src/compositor-drm.c
++++ b/src/compositor-drm.c
+@@ -646,7 +646,7 @@ drm_output_repaint(struct weston_output *output_base,
+ .request.sequence = 1,
+ };
+
+- if ((!s->current && !s->next) ||
++ if ((!s->current && !s->next) &&
+ !drm_sprite_crtc_supported(output_base, s->possible_crtcs))
+ continue;
+
+@@ -757,6 +757,7 @@ page_flip_handler(int fd, unsigned int frame,
+ {
+ struct drm_output *output = (struct drm_output *) data;
+ uint32_t msecs;
++ uint32_t bail;
+
+ /* We don't set page_flip_pending on start_repaint_loop, in that case
+ * we just want to page flip to the current buffer to get an accurate
+@@ -769,9 +770,14 @@ page_flip_handler(int fd, unsigned int frame,
+
+ output->page_flip_pending = 0;
+
++ if(output->vblank_pending) {
++ weston_log("VBlank is pending for connector = %d, frame = %d\n", output->connector_id, frame);
++ bail = 1;
++ }
++
+ if (output->destroy_pending)
+ drm_output_destroy(&output->base);
+- else if (!output->vblank_pending) {
++ else if (!output->vblank_pending || bail ) {
+ msecs = sec * 1000 + usec / 1000;
+ weston_output_finish_frame(&output->base, msecs);
+
+--
+1.7.9.5
+