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I tried the steps at Ubuntu freezes/crash after wake when upgraded to 13.10. None of them solved my problem.

When I close the lid on my laptop, ubuntu goes to sleep just as it always has. However, since the update, it just shows a black screen (pixels emit leak through light, showing screen to at least have turned on.)

Sometimes (once), my desktop will flash before going into the black screen.

This is a very annoying bug, and if any more information is needed (cat insert-config-file-here, etc), I am willing to provide

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closed as off-topic by bain, chaskes, Sneetsher, Warren Hill, Radu Rădeanu Jul 15 '14 at 17:04

This question appears to be off-topic. The users who voted to close gave this specific reason:

  • "Bug reports and problems specific to development version of Ubuntu should be reported on Launchpad so that developers can see, track and fix these issues." – bain, chaskes, Sneetsher, Warren Hill, Radu Rădeanu
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