On Mon, Jan 31, 2011 at 04:41:03PM -0500, Mackenzie Morgan wrote: > On Mon, Jan 31, 2011 at 4:34 PM, Kees Cook <k...@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.deslauri...@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/ slanga...@ubuntu.com vor...@debian.org
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