diff --git a/arch/x86/lib/bios.c b/arch/x86/lib/bios.c
index 5dfe5a6..de45786 100644
--- a/arch/x86/lib/bios.c
+++ b/arch/x86/lib/bios.c
@@ -231,7 +231,11 @@
 {
 	unsigned char *framebuffer;
 
-	mode_info->video_mode = (1 << 14) | vesa_mode;
+	/*
+	 * bit 14 is linear-framebuffer mode
+	 * bit 15 means don't clear the display
+	 */
+	mode_info->video_mode = (1 << 14) | (1 << 15) | vesa_mode;
 	vbe_get_mode_info(mode_info);
 
 	framebuffer = (unsigned char *)(ulong)mode_info->vesa.phys_base_ptr;