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Fresh install on Toshiba R840. No other software installed. I put the laptop to suspend or the laptops goes to suspend mode after 10 minutes of inactivity. Coming back from suspend, Ubuntu tries to wake up the laptop, but the screen never comes on, and the laptop hangs. The only solution is hard reset.

How to diagnose and fix the problem? Windows 7 works great when sleeping the laptop.

Thanks!

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