My macbook does not want to go to sleep when I close the lid or manually choose sleep from the apple menu.
Things I have tried:
- resetting the PRAM
- resetting the SMC
According to PMSET the following assertion did occur:
PreventSystemSleep 1
No idea why or where that comes from.
Edit: Apparently cupsd is the problem, but why is it acting up all of the sudden? I haven't changed any of my printer settings lately.