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Since I installed 13.04, I've had occasional lockups that sometimes relate to VLC player (could be something else). I can sometimes CtrlAltF1 to a different terminal to sigkill VLC, but sometimes it looks up to a point where I can't click buttons and can't execute any keyboard commands and I need to power cycle.

Does anyone have any recommendations for how I should troubleshoot this issue? Should I hunt through /var/log after it happens etc?

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