----- Original Message -----
My take on this is that we want the feature, but not as a 'try to
see if it
works' feature. So my suggestion is as
follows:
1) We disable it by default
In systemd, either in the Fedora package or upstream, and document how to
enable it again for power users in the release notes.
2) We develop some kind of whitelisting system to allow us to enable
this on
systems we know it works (maybe tie it into the whitelisting system Hans has
created for other power saving features?)
That means adding more code to the "Can*" D-Bus methods in systemd as well.
3) Once we have this is place we can discuss doing a UI to allow
people to
tweak behaviour of this, like they do on MacOS X, but it would be a UI that
is only visible for people on whitelisted systems to tweak between known
behaviours, not a 'try to turn this on to potentially break your system' UI.
Again, that behaviour is implemented in systemd itself, I'm sure they'd rather
have hibernation be triggered on battery level, or at least making that
timeout configurable.