Originally Posted by werdnaonaps
The strange thing is that I formatted my partition to do a full install of the new 13.37 ( I was encountering a few obscure problems, so I wanted to do a full install) and the problem totally disappeared. Maybe there was some hardware driver update that fixed some issue? I guess I don't need help anymore though.
Oh, so previously you did in-place upgrade?
Well, AFAIK, best practice in most cases for upgrade is by doing reformat and full install. The exception is probably a rolling release distro, but it has its own quirks too.
Glad you make it man!
Maybe it's the swap formatter, maybe it's the power manager....