Shall we hide the GUI for Hibernate in Natty?

[Steve Langasek]

On Mon, Jan 31, 2011 at 04:41:03PM -0500, Mackenzie Morgan wrote:
> On Mon, Jan 31, 2011 at 4:34 PM, Kees Cook <kees at ubuntu.com> wrote:
> > 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.

> I know some hardware has BIOS support for that, but I thought the OS
> needed to understand it too and that Ubuntu was in "not yet" state on
> that.  Is this new?

If the hardware supports resuming from suspend when the battery is
critically low, this Just Works with no input from Ubuntu.  Then
post-resume, you just get a "critical battery" state that is handled
according to whatever policy currently applies.

I think this has been supported for something like the past 2 years, though
it's possible that not all hardware is sending ACPI events that Ubuntu can
understand.

-- 
Steve Langasek                   Give me a lever long enough and a Free OS
Debian Developer                   to set it on, and I can move the world.
Ubuntu Developer                                    http://www.debian.org/
slangasek at ubuntu.com                                     vorlon at debian.org
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