diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/dacnv50.c b/drivers/gpu/drm/nouveau/core/engine/disp/dacnv50.c
index d0817d9..aadb4a8 100644
--- a/drivers/gpu/drm/nouveau/core/engine/disp/dacnv50.c
+++ b/drivers/gpu/drm/nouveau/core/engine/disp/dacnv50.c
@@ -51,7 +51,7 @@ nv50_dac_sense(struct nv50_disp_priv *priv, int or, u32 loadval)
 	const u32 doff = (or * 0x800);
 	int load = -EINVAL;
 	nv_wr32(priv, 0x61a00c + doff, 0x00100000 | loadval);
-	udelay(9500);
+	mdelay(45);
 	nv_wr32(priv, 0x61a00c + doff, 0x80000000);
 	load = (nv_rd32(priv, 0x61a00c + doff) & 0x38000000) >> 27;
 	nv_wr32(priv, 0x61a00c + doff, 0x00000000);