My Ubuntu 12.04.1 LTS freezes entire system occasionally except for mouse. What to do?

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What should I do when Ubuntu freezes?

System freezes and even seconds in clock stop. Keyboard no responds only mouse pointer moves but no left nor right click. How to fix?

What is your hardware specs? try to update your BIOS – Oct 01 '12 at 14:16 — , Oct 01 '12 at 14:16

score 0 · Answer 1 · answered Oct 01 '12 at 14:13

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Does this happen always after an specif event, or out of the blue?

Have you tried restarting the window manager lightdm from a tty?

This will close your apps though.

answered Oct 01 '12 at 14:13

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