Just to explain, I only use the box for Kodi and so prefer LibreELEC. I'd like to use "suspend" because it starts the box where I left it when I switched off, and it is an option in the power-off menu so presumably it is supported. The problem is (per my opening post) that after a long period of suspension (overnight) the box powers up and freezes with a blue light but no HDMI output. I thought I'd try "hibernate" as an alternative, which might solve the freezing on startup because the RAM isn't powered and hence subject to glitches when the box is off, but this doesn't work at all. (It is an option listed by Kodi and I used the Keymap Editor to activate it). If suspend or hibernate don't work reliably, then does that only leave full shutdown? If so, is there a way of getting rid of the "press Menu within 5s if you want Android" screen, that slows things down if you're like me and only want LibreELEC?