No graphics after installing AMD Catalyst 12.4 and installing the recommended updates afterwards

Posted by Innonic on Ask Ubuntu See other posts from Ask Ubuntu or by Innonic
Published on 2012-06-12T08:15:35Z Indexed on 2012/06/25 9:23 UTC
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Filed under:

graphics

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updates

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update-manager

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radeon

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catalyst

Some days ago, I installed Ubuntu 12.04. Since I wanted to use dualview using an external display I installed the propriatary AMD Catalyst 12.4. The graphics are fine, but if I run the updates found by the updates manager, Ubuntu won't be able to start with graphics after reboot. I installed Ubuntu 3 times until I realized what the problem was. So now I got the basic installation with Catalyst running but I can't update the system. Is there any solution to this? Or can I somehow identify which update causes this?

My System is a Lenovo y560 Ideapad (Intel Core i7, 8GB RAM, with AMD Radeon HD 6570M/5700 Series.

Thank you in advance

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