Resume from Sleep/Hibernation

[Alex Volkov]

Hey Alex,

I had a similar problem with my thinkpad laptop. In my case though, 
sleep worked flawlessly  but hibernation failed. I don't remember exact 
steps, but on the debian system, re-running the following command and 
fiddling with parameters helped:

# dpkg-reconfigure uswsusp

This is kind of obvious, but if you running off SSD, you still need to 
have swap partition for hibernation to work.
If you are using any proprietary drivers i.e. video card drivers -- I 
have nvidia on my desktop and the weird issue I had some time ago, the 
system will hibernate only once, also if you are using non-free firmware 
you will have to blacklist it in one of the  uswsusp config files so the 
module will be reloaded for each hibernate/wakeup. Strangely in my case 
wireless module correctly wakes up from sleep but not hibernation.

I hope that helps.

Alex.



On 20/10/11 02:05 PM, Alex Gabriel wrote:
> Hey all,
>
> Before I begin, let me say that I've already scoured the Internet for
> possible solutions, but nothing appears relevant.
>
> I've noticed an issue with sleep and hibernation in both Kubuntu 11.10
> and PCLinuxOS 2011.09.  Initiating sleep and/or hibernation works
> correctly, but when I resume from either one, rather than being
> prompted for my password [as was the default previously], the KDM
> login screen appears.  So, it seems that, somehow, KDE crashed during
> the restore.
>
> The behaviour occurs on my Acer Aspire One D250 net book, Compaq
> Presario V6000 note book, and my girlfriend's Lenovo note book.  I've
> not yet seen it occur on any desktop, but as I haven't had time to
> test it, I'm not sure if it's related to KDE or the hardware.
>
> Sleep/Hibernation worked flawlessly in previous versions of both
> distributions.  I've tested other distributions with KDE [Fedora,
> openSUSE, RHEL], as well as GNOME [Fedora, RHEL, SLES, Ubuntu] and
> XFCE [PCLinuxOS], and haven't seen this issue appear for those
> environments.
>
> I've tested the behaviour when running no applications whatsoever as
> well as running multiple different applications, and it seems to make
> no difference.  When I run either distro through a VM at work, sleep,
> hibernate, and restore all occur without any issue.  I'm not overly
> certain whether this is a valid test, though, given that the distro
> doesn't [as far as I am aware] interact directly with the hardware.
>
> I'm not overly familiar with the workings of KDE, so if anyone has any
> pointers to information, or ways I can troubleshoot this, it would be
> greatly appreciated.
>
> Alex Gabriel
> Dimensia Design Studio
> alexgabriel-Nmj6Sl6vboSovDFt+AQlJdBPR1lH4CV8 at public.gmane.org
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