@CaseySJ Further to my issue, I did some tests and here is what I have found:
- for an unknown reason my VR helmet which is connected to a USB-c at the back was on and was preventing the system to go to sleep;
- did an NVRAM reset but still the same issue; no connection upon wake up;
- however, upon wake up if I open the BT menu in the control center (top right corner), all the BT devices are showing up as connected (but they are not). Then about 1 minute later, suddenly all those BT devices status goes from connected to disconnected then the reconnect automatically except for the soundbar; and
- I use sleepwatcher which executes amongst other a script when the system is going to sleep or waking up. In my wake up script, I run bluetutil --connect to reconnect to my soundbar. I have been running that script under big sur and it was working fine. I can see that this script is executed upon wake up (got an entry in a log file) but somehow it does not reconnect the soundbar.
But the consistent thing is that after roughly 1 minute the keyboard and the mouse are reconnected. Obviously not ideal
Any idea where to look for to see what is causing this 1 minute delay?
Edit: noticed that upon wake up, if I don't do anything, the BT devices won't reconnect even after a minute. They will only reconnect if I display the BT devices list from the control centre.