I just compiled 13.0 on my desktop, an HP 8500, i7-2600. It comes up fine but the video ignores resolution settings that work fine for 12.2-P6. (This is in a ZFS boot environment.) I know there's been a lot of changes but loader.conf vty is still vt so I don't know where to begin looking. The machine uses embedded Intel video chipset. Perhaps there's obsolete ports involved?