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How to fix “The system is running in low-graphics mode” error?

I have Ubuntu 12.04 LTS (re)installed on this laptop:

I've also installed the fglrx-drivers for my ATI card (using apt-get),it appeared to work fine,that is until i updated my distro. Once again i got the "low graphics mode" error when i booted into the new kernel,booting in the old kernel works fine however. When i look into the logs i see "no screen found". This is the second time i install Ubuntu and the second time i run into problems with my graphics.

Reinstalling isn't a solution since the problem keeps comming back. My question now is: does anyone know a REAL solution for this issue ar at least knows

what's causing it?

Any help would be greatly appreciated.

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marked as duplicate by jokerdino, stephenmyall, hexafraction, Mitch, Jorge Castro Oct 26 '12 at 21:55

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

What happens reinstalling only the ati driver again? Sometimes I have the same problem (Black Screen/Wrong resolution) So I go to shell and reinstall the display drivers. After reboot all works fine for me. I have to do this on every kernel update. Maybe it can help you.

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