Originally Posted by peterleinchen

Exactly what I noticed (just switched to kp52 a few says ago).

Could you please give output of

Code:

top

in x-term (did not reveal anything to me) and also -if powertop installed-

Code:

sudo powertop >out; sleep 5; sudo powertop >> out; sleep 5; sudo powertop >> out

with device in idle mode and keyboard/screen closed? Attach the file 'out' here (looked normal to me, except around 1500 wakeups from kernel tick and device did not enter C4 state).

Solution:
Please try the following.
shut down
pull battery
press power button for 3 seconds (or a bit longer)
insert battery
start up

This solved it for me. And it was not the first time, already noticed that at least one maybe two times before after upgrading kp.

So if this is confirmed by another guy and my procedure to be the solution, maybe it is worth to mention in first post(s) of kp thread(s), pali?