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I am really new to this Linux world and my system is running really slow since after installing Ubuntu 14.04. It is showing some type of error:

    low on graphics.
    cannot detect your screen , graphics and devices.

I am running the OS in low graphics mode and moreover I have to goto boot options every time I switch on my PC and select the low graphic mode option in (Advanced options in Ubuntu) → Recovery mode. How should I make my pc in normal working condition.

sudo lshw -c display

*-display UNCLAIMED
description: VGA compatible controller
product: C61 [GeForce 6150SE nForce 430]
vendor: NVIDIA Corporation
physical id: d
bus info: pci@0000:00:0d.0
version: a2
width: 64 bits
clock: 66MHz
capabilities: pm msi vga_controller bus_master cap_list
configuration: latency=0
resources: memory:de000000-deffffff memory:c0000000-cfffffff memory:dd000000-ddffffff memory:dff40000-dff5ffff
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marked as duplicate by Sneetsher, Eric Carvalho, Warren Hill, Luis Alvarado Jul 24 at 18:34

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.

    
Open terminal Ctrl+Alt+t, then run sudo lshw -c display. Add its output to the question (BTW, use that small edit under the question) –  Sneetsher Jun 10 at 16:05
    
jasser@Jasser:~$ sudo lshw -c display *-display UNCLAIMED description: VGA compatible controller product: C61 [GeForce 6150SE nForce 430] vendor: NVIDIA Corporation physical id: d bus info: pci@0000:00:0d.0 version: a2 width: 64 bits clock: 66MHz capabilities: pm msi vga_controller bus_master cap_list configuration: latency=0 resources: memory:de000000-deffffff memory:c0000000-cfffffff memory:dd000000-ddffffff memory:dff40000-dff5ffff These are the results @Sneester and it shows the display unclaimed. Sorry for not posting the question properly –  user291957 Jun 10 at 17:56

1 Answer 1

Install the accelerated nVidia Graphics driver xserver-xorg-video-nouveau.

sudo apt-get install xserver-xorg-video-nouveau
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