--- linux-2.6.21.new/drivers/video/pm2fb.c	2007-04-29 19:29:43.117682737 +0200
+++ linux-2.6.21/drivers/video/pm2fb.c	2007-04-29 20:59:24.995630216 +0200
@@ -645,6 +656,8 @@ static int pm2fb_check_var(struct fb_var
 		return -EINVAL;
 	}
 
+	var->transp.offset = 0;
+	var->transp.length = 0;
 	switch(var->bits_per_pixel) {
 	case 8:
 		var->red.length = var->green.length = var->blue.length = 8;