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Lenovo IdeaPad z360 (optimus)


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#1
griven

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i just got hands on an IdeaPad z360 with NVidia Optimus Technology on which I´d like to install OSX 10.7.X on.

The installation of Lion runs flawlessly and the installed System boots up just fine BUT as far as I know there is no way to enable QE/CI. OSX detects both, the nVidia Chipset (NV3100M) and the GMA and shows them in System Profiler but it only uses the GMA Chipset which isn´t capable to use CI/QE. Unfortunately the Bios offers no Options to switch Graphics so optimus is always enabled...

Is there any Solution to my issue, perhaps a DSDT hack which disables the GMA Graphics part to force OSX to Use the NVIDIA Graphics or a mod Bios which allows me to turn off GMA Graphics and use NVidia Graphics?

Hope anyone of you has a Solution because the little {censored} is a quite perfect Hackbook Air...

#2
AjGilee

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Some lenovo laptops, like thinkpads has graphics settings in BIOS to choose VGA, you might want to check it first.

#3
griven

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Hey AjGilee,

sorry but it is not that easy (of course I checked it before) I can choose between "Discrete Graphics" and "Optimus" and that´s it. The Bios offers no way to disable Intel´s GMA which isn´t supported by OSX. That´s why I asked if there is an DSDT based hack and/or a ModBios available which allows me to hide/disable Intel´s GMA and force the Notebook to always use the NVIDIA GPU.

greetz griv.





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