diff --git a/common/hw-gfx-gma.adb b/common/hw-gfx-gma.adb
index d004381..de30c4e 100644
--- a/common/hw-gfx-gma.adb
+++ b/common/hw-gfx-gma.adb
@@ -658,7 +658,7 @@
                when Ivybridge |
                     Sandybridge  => Audio_VID_DID = 16#8086_2806# or
                                     Audio_VID_DID = 16#8086_2805#,
-               when Ironlake     => Audio_VID_DID = 16#8086_2804#);  -- not sure
+               when Ironlake     => Audio_VID_DID = 16#0000_0000#);
       end Check_Platform;
    begin
       pragma Warnings (GNATprove, Off, "unused variable ""Write_Delay""",