(New iMac) How long does your BT devices take sync up?

[seble]

Yesterday read on a page here from around 2011 where it mentioned that peoples apple BT keyboard and mouse (magic trackpad in my case) sync up as soon as the apple logo comes up.

On mine, the green light doesn't come up until a few seconds after reaching the login screen. I can't use the mice or others until that point.

Is this normal behaviour? Was only thinking about it because what if I have to do a PRAM reset or something like that!

 

[GGJstudios]

On mine, the green light doesn't come up until a few seconds after reaching the login screen. I can't use the mice or others until that point.

Is this normal behaviour? Was only thinking about it because what if I have to do a PRAM reset or something like that!

PRAM/NVRAM has nothing to do with the keyboard, mouse or bluetooth. Resetting it will not help.

About NVRAM and PRAM​

You just need to be a little bit patient.

Wireless input devices: Bluetooth frequently asked questions

9. After my computer starts up or wakes from sleep, when will the wireless devices become active?

Wireless devices are usually available a few moments after the computer completes the startup process. After waking from sleep, Apple Magic Mouse and Apple Wireless Keyboard (2009) should be available right away. Other wireless devices can take up to 5 seconds to be recognized when waking from sleep. You may need to click a button on the wireless mouse once or twice to wake it up.

 

[forty2j]

On my 2012, I find myself waiting for the ethernet to connect after sleep. The keyboard & trackpad I've never had to wait for.