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I'm new to linux environment. I have NVIDIA GEForce GT 520M which is Optimus card. I installed ubuntu 12.10 and on the top of that I installed NVIDIA's new driver 304.60 but something went wrong and display manager is totally screwed nothing is displaying properly. All fonts are big and i'm able to access only nautilus as everything went out of the screen. I tried removing it and rollback it to nouveau but it is happening in any case. I want better power management and I want to use my card for CUDA programming so I was installing driver before installing bumblebee. Can anyone please tell me simple steps to use my card for CUDA programming? with CUDA 5 .

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I had problems, but I followed this steps and it comes to work well: How to install nvidia optimus driver on ubuntu 12.10?

Basically, taken from CruzBishop:

#if you have previously installed nvidia or bumblebee from the repos:
sudo apt-get purge bbswitch-dkms bumblebee-nvidia

#if you have previously installed nvidia drivers from the binary, you can uninstall it running the same installer.

#next steps:    
sudo apt-get install linux-headers-3.5.0-17-generic
sudo add-apt-repository ppa:bumblebee/stable
sudo apt-get install bumblebee bumblebee-nvidia
#install cuda the old way, as you have done in 12.04

It worked out for me.

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You should not download the nvidia driver from their site and try to install it yourself. Instead, reinstall the OS and next time install bumblebee and let the software to download the nvidia driver and configure it for you.


I also recommend installing Jupiter:

sudo add-apt-repository ppa:webupd8team/jupiter
sudo apt-get update
sudo apt-get install jupiter
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As Jack Info has pointed out, it's completely unnecessary to reinstall Ubuntu to get rid of the upstream Nvidia drivers. The Nvidia drivers come with an uninstall script. If anyone has trouble uninstalling them, posting a question about it here on Ask Ubuntu should solve the problem much faster than reinstalling the entire OS. – Eliah Kagan Jan 7 '13 at 19:39

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