BTW, there was some code around in the switcher and in mackintosh lists on this. File was something like gmux.c
On 28 Jul 2016, at 11:45, Francois Tigeot <[email protected]> wrote: > On Thu, Jul 28, 2016 at 10:49:26AM +0200, Pedro Andres Aranda Gutierrez wrote: >> Similar problem here with an ASUS with nVidia Optimus... So it's not Mac >> specific... > > Well, in a way it is. > > If I'm not mistaken, most Optimus devices have their video outputs directly > connected to the Intel GPU so it's just a matter of disabling the NVidia one. > > On at least some Macbook models, the video output are connected to a third > chip, and this chip must also be told to talk exclusively to the Intel GPU at > boot time first. > > -- > Francois Tigeot
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