diff --git a/drivers/video/tridentfb.c b/drivers/video/tridentfb.c
index da4b464..1c3f0ba 100644
--- a/drivers/video/tridentfb.c
+++ b/drivers/video/tridentfb.c
@@ -878,11 +878,9 @@
 	switch (bpp) {
 	case 8:
 		var->red.offset = 0;
-		var->green.offset = 0;
-		var->blue.offset = 0;
-		var->red.length = 6;
-		var->green.length = 6;
-		var->blue.length = 6;
+		var->red.length = 8;
+		var->green = var->red;
+		var->blue = var->red;
 		break;
 	case 16:
 		var->red.offset = 11;