I guess that's one way of handling the power regressions: add a bigger problem and promise you'll fix it, hoping people will forget about the former. I know, power regressions are not Ubuntu's fault, but as one of the bigger distros based on the Linux kernel, there's nothing stopping them from lending a hand and/or providing a bit of feedback every now and then.

@DaemonFC: I have also used XFS trouble-free. But then I messed up the FAT and found out that there's a very thin selection of recovery software for XFS. Now I use XFS on the system partition and EXT on /home.