From 873d8791e21b805c8053c68e3406bac347fbc2b7 Mon Sep 17 00:00:00 2001
From: OBattler <oubattler@gmail.com>
Date: Sun, 18 Feb 2024 21:34:13 +0100
Subject: [PATCH] Override the (S)VGA blanking calculation for the S3 Trio32,
 Trio64, Trio64V+, and Trio64 V2/DX.

---
 src/video/vid_s3.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/video/vid_s3.c b/src/video/vid_s3.c
index 27c364898f..e387245c9d 100644
--- a/src/video/vid_s3.c
+++ b/src/video/vid_s3.c
@@ -4093,6 +4093,11 @@ s3_recalctimings(svga_t *svga)
             }
         }
     }
+
+    if ((s3->chip == S3_TRIO32) || (s3->chip == S3_TRIO64))
+        svga->hoverride = 1;
+    else
+        svga->hoverride = 0;
 }
 
 static void
@@ -4271,6 +4276,8 @@ s3_trio64v_recalctimings(svga_t *svga)
                 break;
         }
     }
+
+    svga->hoverride = 1;
 }
 
 static void