1 files changed, 14 insertions, 2 deletions

diff --git a/drivers/gpu/drm/i915/intel_fb.c b/drivers/gpu/drm/i915/intel_fb.c
index 0e19e575a1b4..6b7c3ca2c035 100644
--- a/drivers/gpu/drm/i915/intel_fb.c
+++ b/drivers/gpu/drm/i915/intel_fb.c
@@ -262,10 +262,22 @@ void intel_fbdev_fini(struct drm_device *dev)
 void intel_fbdev_set_suspend(struct drm_device *dev, int state)
 {
         drm_i915_private_t *dev_priv = dev->dev_private;
-        if (!dev_priv->fbdev)
+        struct intel_fbdev *ifbdev = dev_priv->fbdev;
+        struct fb_info *info;
+
+        if (!ifbdev)
                 return;
 
-        fb_set_suspend(dev_priv->fbdev->helper.fbdev, state);
+        info = ifbdev->helper.fbdev;
+
+        /* On resume from hibernation: If the object is shmemfs backed, it has
+         * been restored from swap. If the object is stolen however, it will be
+         * full of whatever garbage was left in there.
+         */
+        if (!state && ifbdev->ifb.obj->stolen)
+                memset_io(info->screen_base, 0, info->screen_size);
+
+        fb_set_suspend(info, state);
 }
 
 MODULE_LICENSE("GPL and additional rights");