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I've tried to install the nvidia drivers on my laptop (acer aspire E1-571G GEFORCE 620M), but additional drivers (jockey) doesn't show anything.

Running the command:

sudo lshw | less

...shows the following details;

     *-display UNCLAIMED
                description: VGA compatible controller
                product: GF117M [GeForce 610M/710M / GT 620M/625M/630M/720M]
                vendor: NVIDIA Corporation
                physical id: 0
                bus info: pci@0000:01:00.0
                version: a1
                width: 64 bits
                clock: 33MHz
                capabilities: pm msi pciexpress vga_controller cap_list
                configuration: latency=0
                resources: memory:b2000000-b2ffffff memory:a0000000-afffffff mem
ory:b0000000-b1ffffff ioport:2000(size=128)

I also tried to install the drivers via the terminal by:

 sudo apt-get install build-essential linux-source linux-headers 
 sudo apt-get install nvidia-current 

...however, the drivers didn't install (system info says "unknown" graphics card) and the Unity launcher wouldn't start.

Any idea on how I can resolve this issue?

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