[Pkg-utopia-maintainers] Bug#555712: Bug#555712: devicekit-power: wrong status for can-hibernate and lid-is-present

[Michael Biebl]

Yves-Alexis Perez wrote:
> clone 555712 -1
> retitle 555712 "wrong status for can-hibernate"
> retitle -1 "wrong status for lid-is-present"
> thanks
> 
> On mer., 2009-11-11 at 16:04 +0100, Michael Biebl wrote:
>> Yves-Alexis Perez wrote:
> 
>>> This is on a ThinkPad T61 which indeed has a LID and can hibernate
>> just fine
>>> (even if I have problems at resume but that's not the point). Not
>> sure if it's
>>> related but I use full disk encryption using dm-crypt/luks (as
>> proposed by
>>> d-i, so the swap is inside). I saw in #551797 that encrypted swap
>> leaded to
>>> impossible hibernate but I don't think it's true (since I can
>> hibernate just
>>> fine using direct commands or hal).
>> hal or pm-suspend do not check for encrypted swap.
>>
>> See the following commit
>> http://cgit.freedesktop.org/DeviceKit/DeviceKit-power/commit/?id=ea6eb
>> d1a526653bb9d59d5143d844c0f7557a351
> 
> Well, the main point of having encrypted swap is for hibernation. It
> doesn't really make sense to disable hibernate in those case.


See the referenced fdo bug why this was added.
http://bugs.freedesktop.org/show_bug.cgi?id=23196

Could you provide a better logic to detect when it is safe to hibernate or not?

I use no type of encryption so I have zero experience with that and a patch
would be most welcome.

It's probably also best to take this issue upstream and discuss it there.


>> So the output of /proc/swaps and /proc/crypttab would probably be
>> helpful.
> 
> /proc/swap:
> ----
> Filename				Type		Size	Used	Priority
> /dev/mapper/hidalgo-swap_1              partition	1048568	117996	-1
> ----
> 
> /etc/crypttab:
> ----
> sda5_crypt /dev/sda5 none luks
> ----

-- 
Why is it that all of the instruments seeking intelligent life in the
universe are pointed away from Earth?

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