Enable hibernation

Phillip Susi psusi at ubuntu.com
Fri Jan 3 22:08:28 UTC 2014


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On 1/3/2014 4:50 PM, Steve Langasek wrote:
> The hibernate menu option was disabled because it was exposed in
> many cases where hibernate would not work reliably.  Indeed, I was
> recently trying to

According to whom? Is there any record of this testing?  My experience
( and many others ) is that hibernate is more reliable than suspend
since it doesn't rely on often buggy bios.  If there is evidence that
it is terribly unreliable, I'd like to see it.

> make pm-hibernate work for me on the commandline in trusty (because
> my machine seems to be in its death throes and suspend no longer
> works reliably for me), and found that, even though I have a 6GB
> swap partition and 4GB of RAM, I am consistently unable to
> hibernate here (I think kernel changes wrt dm-crypt may be to
> blame).

If there's a bug with hibernation and dm-crypt, it should be addressed.

> I don't think we should have a menu option exposed by default which
> will fail to work for a large number of users (in most cases, after
> first churning the disk for a minute or two).  And at the time this
> decision was made, there were not resources to make this menu
> option work *reliably* in Ubuntu.

How many is "large"?  I've never seen many people complaining about it
either on askubuntu, or the ubuntuforums, or filing bug reports, so I
find this claim hard to believe.  What is it specifically that
prevents it from working reliably, and in what cases?


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