Lenovo ThinkPad T520

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Notes: similar articles are generally more detailed. (Discuss in Talk:Lenovo ThinkPad T520#)


Installation worked without further setting adjustments.


The BIOS option Display->Graphics Device can be switched to these settings:

Integrated Graphics

Use this with the xf86-video-intel driver. The nvidia card will be turned off, which means that the system will consume less power and you will not have to worry about installing the nvidia drivers.

The integrated graphics is fast enough to run some older games. It is a good option if you do not use demanding 3D applications

A major disadvantage of this mode is that the DisplayPort will not work, because it is hardwired to the Nvidia card.

Discrete Graphics

This will give you good consistent 3D performance in all applications, without having to worry about the complexities of bumblebee. It is also a good option if you want an easy way to connect and use a DisplayPort monitor.

You will not get the power-savings of running from the intel-gfx and turning the discrete nvidia card off. Another disadvantage is that you cannot use this mode to run tripple-head with 2 external Monitors on VGA and DP. This is a hardware limitation, the discrete-nvidia and integrated-intel card can both only drive at most 2 different screens each.

NVidia Optimus

If you choose this option, set "OS Detection for NVIDIA Optimus" BIOS Option to Disabled.

See the Bumblebee page for details on how to use both cards with linux.