diff --git a/drivers/gpu/drm/nouveau/nv50_sor.c b/drivers/gpu/drm/nouveau/nv50_sor.c
index c25c593..e4e33d0 100644
--- a/drivers/gpu/drm/nouveau/nv50_sor.c
+++ b/drivers/gpu/drm/nouveau/nv50_sor.c
@@ -334,6 +334,14 @@ nv50_sor_create(struct drm_connector *connector, struct dcb_entry *entry)
 
 		if (!nv_encoder->dp.mc_unknown)
 			nv_encoder->dp.mc_unknown = 5;
+
+		NV_INFO(dev, "DP config: 0x%08x/0x%08x 0x%08x 0x%08x\n",
+			tmp, nv_rd32(dev, 0x610798 + (or * 8)),
+			nv_rd32(dev, NV50_SOR_DP_CTRL(or, link)),
+			nv_rd32(dev, NV50_SOR_DP_UNK128(or, link)));
+		nv_encoder->dp.mc_unknown = 2;
+		nv_encoder->dp.unk0 = 0x000000c8;
+		nv_encoder->dp.unk1 = 0x010c2c08;
 	}
 
 	drm_mode_connector_attach_encoder(connector, encoder);