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I've just upgraded Ubuntu system from 11.10 to 12.04. In 11.10 graphics were okay. I was running unity 3D and now after upgrade I just got unity 2D and max resolution 1024x768.

How can I fix this?

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We need more informations. Can you send us the exact model of your Intel graphic card ('lshw -c display' can give it if you don't know), do you have any .xsession-errors file in your $HONE directory, could you send the output of /var/log/Xorg.0.log? – Huygens Apr 27 '12 at 12:53
My graphics card is: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller dl.dropbox.com/u/6298774/Xorg.0.log dl.dropbox.com/u/6298774/xsession-errors – Petr Apr 27 '12 at 13:01
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1 Answer

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I had the same problem after the update. You should install glxinfo:

sudo apt-get install mesa-utils
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