Paul S wrote:

Keith Clark said the following on 05/04/2008 11:12 PM:
  

I just tried to put my desktop computer into hibernation by pressing the
half moon key as I would have done in XP.  All seemed well, as the
computer shut itself down in a matter of 10-15 seconds.
    

It takes about 40 sec's here .. the time is required to copy all the 
information on open programs onto a file in your swap.

  

Then, I tried to restart it by hitting the power button, like I would
have done in XP.  Well, the system churned away and churned away.  The
cursor would respond erratically.  Finally a password window came up and
I entered my password.  It accepted it and a black screen came up.  All
this time the hard drive is going crazy with activity.  This went on for
about 15 minutes when I finally shut it down and restarted it.
    

It takes about the same time as a reboot.  When it comes up the 
(k)ubuntu splash screen progress bar freezes and disk activity is 
constant because it's reading and starting all the app's from the file 
in swap.

  

What was going on here?  Does hibernation work?  I thought it would be a
faster way compared to the shut down and reboot option.
    

I don't think it's faster, but yes, it works "most" of the time here.  I 
can't get repeated hibernations with compiz, so compiz is off for now 
(Menu => Appearance => Desktop Effects => none).

It also depends on which video card you have and which driver.

regards,

  

I also, along with some others in the list, have had problems with "hibernation".  At first it worked but complained during power up that it did not work -- but it did!  Now, since I have been extensively using VNC it won't hibernate at all.  When it did work (before using VNC) it complained about 2 things, and now it fails and brings up a flat rectangular grey box asking for my password after which it resumes from where it left off.  I tried looking at the bash or bash like files that control "hibernate" but I could not figure it out.  The one thing that is now different is that it seems to fail after not being able to find a "swap" area. It seems to be looking for the swap area (probably for temporary storage).  Also, my machine is a dual boot right now and that might have something to do with the overall problem.  Who knows.

I really like Ubuntu but maybe it is progressing too fast as a distribution and not enough testing has been involved.  In my opinion the hibernation function has not been comprehensively tested or the "bug" would not occur -- and it is certainly a bug! Somewhere in what I have experienced lies that bug and it could even be complicated by the so-called power up, power down settings.

I try to read the Ubuntu list for solutions but so far the hibernate problems seem to get dismissed as a black hole that no one wants to fall into -- maybe I have missed something as I get several hundred emails a day and have time to look at just a few.  But hibernate as a problem impacts me and so I am very interested in your problem.

Sorry that I cannot give you any concrete solutions but maybe you will now know that this is a serious problem for some users.  It seems that it either works or it fails and it seems that this function fails for many.

Thanks, have a nice day anyway, Ted.
PS:  I will watch you thread and see if you get a solution that works. Let me know if you do.

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