D'après ce que j'ai lu, Il y a plusieurs types d'optimus, certains modèles peuvent être utilisées distinctement via un acpi call ou en désactivant l'intel dans le bios.
Mais d'autres modèles partagent le même bus de sorti (ou un truc de ce style).
Comme le dit un des developpeur chez nvidia:
http://www.nvnews.net/vbulletin/showthread.php?s=69e61aaa8bc(...)
>Apparently, this depends on the laptop. Some laptops have a hardware mux that allows >you to switch the display to the NVIDIA GPU, similarly to how the old Hybrid Graphics >worked. On those laptops, there should be a BIOS setting.
>On laptops that don't have that hardware mux (i.e. where the display is hard-wired to the >Intel display engine), then you currently cannot use the NVIDIA GPU for display, though >you should still be able to use it for CUDA and offscreen rendering.
>We currently do not have plans to support display on Optimus systems where the display >is connected to the Intel hardware, but as you said, it's something we'll probably end up >having to look into in the future, to at least provide some basic display sharing. I can't >promise anything, though.
Il y a des gents qui ont réussi à éteindre la carte nvidia pour économiser un peu de batterie mais pas moyen de l'utiliser pour l'instant, aussi, ils recherchent des testeurs: http://linux-hybrid-graphics.blogspot.com/
[^] # Re: Oui mais attention la!
Posté par petit_bibi . En réponse à la dépêche OpenArena European supeR,Lan 2011. Évalué à 1.
Mais d'autres modèles partagent le même bus de sorti (ou un truc de ce style).
Comme le dit un des developpeur chez nvidia:
http://www.nvnews.net/vbulletin/showthread.php?s=69e61aaa8bc(...)
>Apparently, this depends on the laptop. Some laptops have a hardware mux that allows >you to switch the display to the NVIDIA GPU, similarly to how the old Hybrid Graphics >worked. On those laptops, there should be a BIOS setting.
>On laptops that don't have that hardware mux (i.e. where the display is hard-wired to the >Intel display engine), then you currently cannot use the NVIDIA GPU for display, though >you should still be able to use it for CUDA and offscreen rendering.
>We currently do not have plans to support display on Optimus systems where the display >is connected to the Intel hardware, but as you said, it's something we'll probably end up >having to look into in the future, to at least provide some basic display sharing. I can't >promise anything, though.
Il y a des gents qui ont réussi à éteindre la carte nvidia pour économiser un peu de batterie mais pas moyen de l'utiliser pour l'instant, aussi, ils recherchent des testeurs:
http://linux-hybrid-graphics.blogspot.com/
(Elle possêde un XPS L501X)