diff --git a/src/video/vid_s3_virge.c b/src/video/vid_s3_virge.c
index 3bd6d694d..d8356df4a 100644
--- a/src/video/vid_s3_virge.c
+++ b/src/video/vid_s3_virge.c
@@ -828,6 +828,9 @@ s3_virge_recalctimings(svga_t *svga)
 
     svga->hdisp = svga->hdisp_old;
 
+    if (virge->chip >= S3_TRIO3D2X) {
+        svga_set_ramdac_type(svga, (svga->seqregs[0x1b] & 0x10) ? RAMDAC_8BIT : RAMDAC_6BIT);
+    }
     if (!svga->scrblank && svga->attr_palette_enable && (svga->crtc[0x43] & 0x80)) {
         /* TODO: In case of bug reports, disable 9-dots-wide character clocks in graphics modes. */
         svga->dots_per_clock = ((svga->seqregs[1] & 1) ? 16 : 18);