Re: suspend or hibernate

[Robert Moskowitz <rgm@xxxxxxxxxxxxxxx>]

On 01/01/2014 06:22 PM, Richard Vickery wrote:

On Wed, Jan 1, 2014 at 2:26 PM, Ed Greshko <Ed.Greshko@xxxxxxxxxxx> wrote:

On 01/02/14 06:09, Richard Vickery wrote:
> I just called up the gnome-tweak-tool: what's the difference between suspend and hibernate? It gives these, among other sleeping actions when folding the computer up.
>
> Just curious - hibernate doesn't have a man page.
>

suspend keeps the system powered on, but in a low power mode.  No computing is done but the current working state is kept in memory.  Resume from suspend is very (or should be) quick.

hibernate places memory on disk and the system is completely powered off.

Ah! Thanks! I might find "hibernate" on my own: why would a user use this command rather than saving and booting up? and How does it know that to look for the memory?

Hibernate takes all the current state and copies it to swap.  Thus you need a large swap to handle this.  I always create my swap twice my memory size.  I tend to have 4 workspaces running with:  4 copies of Thunderbird, 6 open LIbreoffice docs, 20 Firefox windows with lots of tabs, a few gedits, a few Natulises, and sundry others.  I really don't like to boot unless I have to.  Suspend and Hibernate are my friends.  When hibernate works on this Lenovo; a known problem.

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