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Has anyone tried getting the GT640M (Optimus) to run on any linux distro? The last time I tried, bumblebee did not work and was stuck on my HD4000 and my laptop's fan revved up to its max with overheating issues.

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I tried it on Ubuntu 12.04 with Bumblebee and bumblebee-ui and it did not work. I have the 1GB GDDR5 model with an Intel Core i7 3615QM. –  sabrefresco Jan 27 '13 at 15:43
    
What laptop do you have? –  Breakthrough Jan 27 '13 at 16:02
    
Its the Samsung 'NP700Z5C-S04US'. samsung.com/us/computer/laptops/NP700Z5C-S04US –  sabrefresco Jan 27 '13 at 17:22
    
Make sure you look at this bug, use caution with UEFI and Ubuntu on that series laptop (it's a known, critical bug where you can brick your laptop). Assuming it's installed already, don't worry, but I'd have a look at the bug report(s) anyways. I thought I had seen a blog post regarding Optimus setup on that laptop, but my apologies - it was a Dell-specific process instead... –  Breakthrough Jan 27 '13 at 23:24
    
The last time I tried it was via Wubi when I was still on Windows 7. Now I am on Windows 8, and Wubi does not work. So I guess I better wait. –  sabrefresco Jan 28 '13 at 15:37

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