osmeest, please update your BIOS to the latest via
http://support.lenovo.com/us/en/products/laptops-and-netbooks/thinkpad-w
-series-laptops/thinkpad-w520 .

If this is reproducible afterwards, please follow these instructions to have 
apport report a new bug about your crash that can be dealt with by the 
automatic retracer. First, execute at a terminal:
cd /var/crash && sudo rm * ; sudo apt-get update && sudo apt-get -y upgrade && 
sudo service apport start force_start=1

If you are running the Ubuntu Stable Release you might need to enable apport in 
/etc/default/apport and restart. Now reproduce the crash, then open a terminal, 
navigate to your /var/crash directory and file your report with:
sudo ubuntu-bug /var/crash/_my_crash_report.crash

where _my_crash_report.crash is the crash you would like to report. By
default, this sends the crash to the Ubuntu Error Tracker
infrastructure, which is different than Launchpad. For more on this,
please see https://wiki.ubuntu.com/ErrorTracker .

However, if after doing this you would still like to have a crash report posted 
to Launchpad, for example to ease triage and add others to your report, one 
would need to open the following file via a terminal:
sudo nano /etc/apport/crashdb.conf

and comment out the line:
'problem_types': ['Bug', 'Package'],

by changing it to:
# 'problem_types': ['Bug', 'Package'],


Save, close, and try to file the crash report again via:
sudo ubuntu-bug /var/crash/_my_crash_report.crash

I'm closing this report since the process outlined above will deal with
this issue more efficiently. Also, please do not attach your crash
report manually to this report and reopen it. Thank you for your
understanding.

Helpful bug reporting tips:
https://wiki.ubuntu.com/ReportingBugs

** Changed in: linux (Ubuntu)
       Status: Incomplete => Invalid

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https://bugs.launchpad.net/bugs/1489298

Title:
  IBM/Lenovo W520 sometimes crashes while resuming after suspend

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