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More Work To Support Nvidia Optimus Lands In Ubuntu 14.04 Trusty Tahr

More work to properly support Nvidia Optimus landed in Ubuntu 14.04 Trusty Tahr. 1. nvidia-prime 0.5 has been released today with a new feature that allows users to switch between the integrated and discrete GPU (“prime-select” command line tool). Other changes include:improved hardware detection – make sure the the laptop uses Nvidia Optimus and Nvidia driver >= 319;more robust system to deal with xorg.conf: broken xorg.conf files will be automatically restored to a configuration that works with hybrid graphics;make sure that NVIDIA is always enabled on shutdown – this will avoid issues with the BIOS;more.nvidia-prime is a package that comes with a set of tools to enable Nvidia’s Prime on MUXless systems. Currently, nvidia-prime 0.5 is available in the Ubuntu 14.04 Trusty Tahr proposed repository and it will take a while before it’s promoted to the main repositories.2. Thanks to the latest nvidia-prime, we can also see a change in Nvidia Settings that landed about two weeks ago in Ubuntu 14.04 Trusty Tahr: an additional tab was added, allowing users to switch between GPUs:This tab is only visible if nvidia-prime >= 0.5 is installed. After changing between the Nvidia and Intel GPUs, you’ll need to log out or restart the

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