Index: sys/dev/vt/hw/efifb/efifb.c
===================================================================
--- sys/dev/vt/hw/efifb/efifb.c
+++ sys/dev/vt/hw/efifb/efifb.c
@@ -132,7 +132,7 @@
 	info->fb_size = info->fb_height * info->fb_stride;
 	info->fb_pbase = efifb->fb_addr;
 	info->fb_vbase = (intptr_t)pmap_mapdev_attr(info->fb_pbase,
-	    info->fb_size, VM_MEMATTR_WRITE_COMBINING);
+	    info->fb_size, VM_MEMATTR_UNCACHEABLE);
 
 	vt_fb_init(vd);