Black screen on login page

Posted by Sulliwane on Ask Ubuntu See other posts from Ask Ubuntu or by Sulliwane
Published on 2012-09-28T14:52:52Z Indexed on 2012/09/28 15:50 UTC
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Filed under:

unity

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lightdm

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ivy-bridge

When I startup my Ubuntu 12.04 installed on a Z77 Pro4 (ASrock motherboard), crucial M4 SSD drive (sata 3), and intel i5 3570k (ivy bridge), I get this black login screen : enter image description here

I also hear the ubuntu login sound "tic toc" but the screen is black, and if I type in some text, only strange characters appears (as you can see on the picture).

Do you have any idea ?

Thanks.

ps : this is an evolution of a previous problem exposed here

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