diff --git a/[refs] b/[refs]
index 6fbde2b29953..49279505bdaa 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: af1d486c18bad7820b0ca52b413458914231102c
+refs/heads/master: fedbe9bc6fd3e14b1ffbb3dac407777ac4a3650c
diff --git a/trunk/drivers/acpi/video.c b/trunk/drivers/acpi/video.c
index 5b32e15a65ce..d0937ab3fb6d 100644
--- a/trunk/drivers/acpi/video.c
+++ b/trunk/drivers/acpi/video.c
@@ -464,6 +464,14 @@ static struct dmi_system_id video_dmi_table[] __initdata = {
 		DMI_MATCH(DMI_PRODUCT_NAME, "HP 1000 Notebook PC"),
 		},
 	},
+	{
+	 .callback = video_ignore_initial_backlight,
+	 .ident = "HP Pavilion m4",
+	 .matches = {
+		DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),
+		DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion m4 Notebook PC"),
+		},
+	},
 	{}
 };