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It is happening now and then but frequently these days. My system E420 Lenovo Thinkpad running 12.04 LTS blacks out and doesn't respond when woke up from sleep by opening the lid.

I then have to forcibly press the Start button and restart the entire system which is creating a headache for me.

Please suggest a way to overcome this problem. Main characteristics leading to this that I have noticed are:

  • When a video is paused before I suspend the system
  • When Eclipse or pgAdmin is running before suspending the system
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Could it be a memory issue?. How much memory do you have? Which is your swap size? –  Javier Rivera Aug 24 '12 at 15:03
    
No i don't think so .. 4GB RAM and 4881404 kB is the swap size –  Ashfaq Aug 24 '12 at 15:15
    
Does it happen when you login with gnome-fallback mode (metacity as the window manager)? –  jeremija Aug 29 '12 at 8:28
    
I have the same problem. Not frequently, but often enough to be problematic. In my case, I can see the cursor, and I can see that the underlying system is responsive, eg the cursor changes when I hover on where the password entry from the screenlock should be, I can unlock the screen and blindly type commands. I have a brand new Thinkpad X230 with 12GB of memory. –  January Sep 17 '12 at 10:50
    
We need more hardware information to help you, can you look at this question and then edit your question adding the information. –  jrg Nov 3 '12 at 1:49

2 Answers 2

Hi I had this problem on my E420 Lenovo Thinkpad. The best solution I could find was to just disable suspend when the lid is closed. Its not a solution I know but it will make it a lot less annoying!

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I suspect that your Lenevo uses an ATI graphics card. Although I am not certain that it is the graphics card that is causing your problem, the following may be useful reading in order of listing.

https://bugs.launchpad.net/ubuntu/+source/linux/+bug/391628

Unity does not start after installing the fglrx drivers on 12.10

I hope this goes some way in assisting you. At your own risk.

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