Fix RB flags for detailed timings

1 files changed, 5 insertions, 1 deletions

diff --git a/edid.c b/edid.c
index f8ba728..0ddcd0f 100644
--- a/edid.c
+++ b/edid.c
@@ -410,7 +410,11 @@ edid_do_detailed_mode(uint8_t *x)
     if (x[17] & 0x80)
         m->flags |= MT_FLAG_INTERLACED;
 
-    /* XXX timings are reduced? */
+    if ((m->htotal - m->hdisplay) == 160 &&
+        (m->hsyncend - m->hdisplay) == 80 &&
+        (m->hsyncend - m->hsyncstart) == 32 &&
+        (m->vsyncstart - m->vdisplay) == 3)
+        m->flags |= MT_FLAG_REDUCED;
 
     return m;
 }