I just bought this notebook and I've already installed in a new partition Ubuntu 12.04 LTS with 6gb of swap memory.

UPDATE2:

This is the laptop configuration: http://h10025.www1.hp.com/ewfrf/wc/document?cc=it&lc=it&dlc=it&tmp_geoLoc=true&docname=c03397517

Sometimes (without any special conditions) Ubuntu freezes. My mouse is blocked, the UI is blocked, ALT+F1 to kill something or to restart is blocked, I can't really do anything...

I've also tried and it freezes with:

• Ubuntu 3D
• Ubuntu 2D
• Gnome Shell

and it freezes both with low and high load.

I can only press on power button (physically) and restart my laptop (and this is not the correct way to do things). I'm using this laptop for work, so I need a stable OS without this freeze.

Someone knows how to solve this problem?

UPDATE:

/var/log/messages is empty /var/log/kernel.log -> http://paste.ubuntu.com/1220182/ /var/log/Xorg.0.log -> http://paste.ubuntu.com/1220186/

I just installed propetary driver from ATI, it crash anyway. This morning I started laptop, I enabled wireless, opened dropbox and chrome -> freeze.

When it freeze I cannot:

• Do ctrl+alt+f1 to get console access
• AltF2 + r to reload session
• Alt+Print + RESUB to restart

I totally freezed.