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Hello I'm new to Ubuntu and all in Linux. I have a computer with 8 GB of RAM and a processor Intel core i7 3770S and video card nVidia GeForce 640M and and Intel integrated graphics. In my system information is displayed only integrated graphics Intel. How do I switch to the nVidia GeForce 640M (in the BIOS do not have this function)? Sorry for the grammatical errors, I do not know much English.

Ubuntu 14.04

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Enter BIOS when you startup your PC go to the advanced settings or wherever you can find this option Primary Display Device and change it from integrated graphics to PCI or AGP or whatever is in there. It looks like your machine is a laptop. Did you install the nvidia graphics card after buying the laptop or was it present from the start. Does Windows detect the nvidia graphics card? –  Taz D. Apr 18 at 9:32
Yes Windows detect it. And it isn't laptop, it is ASUS All in one PC. And for information my PC has UEFI BIOS. I couldn't install nVida graphics card because it is mono-block. –  user270251 Apr 19 at 9:11
See if you Intel card is present in the following list, and go to this link to download and install Intel(R) Graphics Installer 1.0.4 for Linux. There is a direct link on that page specifically aimed to Ubuntu 13.10 (either 32bit or 64bit). It should be enough for you to be able to run Ubuntu better and faster. –  Taz D. Apr 19 at 11:13

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