It's terrible. I remember being woken up one night because my laptop decided to wake up and resume the Netflix video I'd be watching earlier. No input devices c

It's terrible. I remember being woken up one night because my laptop decided to wake up and resume the Netflix video I'd be watching earlier. No input devices connected, lid closed. Another time it cooked in my bag because windows wanted to do an update on shut down so I slept it instead. I have a 2017 XPS model so I the firmware supports S3 sleep. There is no modal in the BIOS though. I had to trick windows into thinking it didn't support modern sleep. Based on posts from others trying to do the same thing, it used to be a single registery key edit. Now it's convoluted and required fiddling with WiFi power controls. The end result it sleeps properly but takes anywhere from 10 seconds (good) to more than a minute (bad) to connect to WiFi when woken up. Of course on Linux it just works. Back when I was looking into this I found someone who'd found a way to patch the acpi table to enable it for the newer models (at risk of bricking the device entirely). Alas I can't find the link any more. I won't buy another Dell until this is fixed. My work laptop is an X1 carbon and it supports only S3 sleep so it just works.