Nvidia Optimus Bios Setting

I just got an l502x and was floored to see that the bios doesn t allow you to turn off the discrete graphics.

Nvidia optimus bios setting. Use the following steps to add or change a software program profile. Graphics device this allows you to choose one of three options integrated discreet or nvidia optimus 2. Nvidia optimus bios setting and install process for the latitude e6420 e6420 atg and e6520. Nvidia optimus technology intelligently optimizes your notebook pc providing the outstanding graphics performance you need when you need it all the while extending battery life for longer enjoyment.

I know many other laptops with optimus lenovos samsungs etc allow you to do this. Default setting the nvidia driver will determine which graphic card would be used depending on the application. For example internet explorer will use the integrated graphics card as it does not require heavy video processing however if you open and run a game the discrete card will take over all the work. I installed windows xp professional but in the bios there isn t no voice to disable the nvidia optimus.

The latitude e6420 e6420 atg and e6520 are offered with the discrete video option for the nvidia nvs 4200m graphic chip at the point of sales. This is really important to actually having the laptop be usable in linux since nvidia s stance is that. It seems there are two separate settings for nvidia optimus in the bios. What does the 2nd.