Hi everyone.
I couldn't find information about this:
With no warnings, the system freezes completeley. From that point, i can't move the mouse pointer, open a TTY, or anything. It just keeps freezed until i press the power button for a couple of seconds.
Hardware:
I have a Lenovo G570 laptop, I3 Sandy Bridge, 3GB DDR3 RAM, graphics Intel HD.
OS:
Ubuntu 12.04, updated
Unity wm
Don't know what the problem is.
The soft usually open is:
/*work*/
Apache with PHP and MySQL
Chromium
Firefox
Sublime Text 2
VirtualBox with Win XP virtualized (1GB RAM and 32MB video, 1 core)
Filezilla
Gimp
/*applets / plugins*/
Webapps (the plugin for chromium)
Ubuntu One indicator
Dropbox
Radiotray
weather indicator
caffeine
I really really appreciate some clues here, i'm working with lots of problems because of this.
Thanks in advance
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