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I have installed 12.04 LTS as a Upgrade and even after waiting for that seemed to be a very long time to complete, I found the system to be unstable and for apps not to work.

So I decided to format and reinstall, but then it went from bad to worse. I am using an nvidia graphics card: when downloading the drivers it would seem to take for ever or totally crash. When I finally get it installed and setup my dual screen when I go to run Display from the Ubuntu menu it comes up with an error message saying:

Could not get screen information - RandR extension is not present

Can some one please tell me what I can do to solve this, or should I go back to 11.10 and give it time for the OS to find its feet.

Thanks for any help


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You need to go to the synaptic package manager gui and search for libXrandr. BTW, are you running 32-bit or 64-bit Ubuntu? Which one you install, libXrandr.i386 or libXrandr.x86_64 is dependent upon that. Once done, you might have to reboot. Then you should be able to setup your display to handle the 2 screens.

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