Shall we hide the GUI for Hibernate in Natty?

[Kees Cook]

On Mon, Jan 31, 2011 at 04:24:11PM -0500, Mackenzie Morgan wrote:
> On Mon, Jan 31, 2011 at 3:00 PM, Marc Deslauriers
> <marc.deslauriers at canonical.com> wrote:
> > I haven't actually tried this in a long time, but what happens with
> > current Ubuntu when the battery drains out while suspended?
> 
> It turns off.
> 
> > Does the
> > laptop wake up and enter hibernation to prevent data loss?
> 
> No, but the disk does sync before suspend, so corruption isn't a
> worry, just... "oops I didn't save before suspending."

My newer laptop supports "hybrid" mode, and it will come out of suspend and
then hibernate when the battery is critically low after being suspended for
a long time. Extremely handy.

> > Will the
> > removal of hibernation support from the kernel result in data loss when
> > battery runs out during suspend? I think there's a difference between
> > removing the hibernate button and removing hibernate completely if
> > that's the case.

In my case, yes.

-- 
Kees Cook
Ubuntu Security Team