I got bumblebee to work on hardened w/ SELinux. It is definitely ready for use. Anyway, as has been explained, you basically HAVE to use optimus - if you would like to return your laptop and/or sue the laptop manufacturer for false advertising, now would be the time to do it.
On Tue, Dec 16, 2014 at 3:39 PM, Heiko Baums <li...@baums-on-web.de> wrote: > > Am 16.12.2014 um 12:55 schrieb behrouz khosravi: > > > I have not tried the bumblebee. > > You need bumblebee. Otherwise it's not possible to use the Nvidia > Optimus chip. > > > I just waned to use optimus without that, but it seem the it is not easy! > > It's not possible, because the Nvidia Optimus chip isn't a full featured > graphics card, and doesn't write directly to the screen. Joost already > explained it pretty well. > > The 2D graphics is done by the GPU embedded in the CPU, which also > writes the output to the screen. The Nvidia Optimus chip is only a > helper chip to do the additional 3D rendering. It gives its output to > the GPU embedded in the CPU which in turn writes the output to the screen. > > To use the Nvidia Optimus chip you need to install these packages: > > x11-misc/bumblebee > x11-misc/virtualgl > sys-power/bbswitch > x11-drivers/nvidia-drivers > > I don't know if, but I don't think that, it will work with > x11-drivers/xf86-video-nouveau. > > Then you need to add bumblebee and vgl to your default runlevel. > > rc-update add bumblebee > rc-update add vgl > > To run a 3D application you need to start it with `optirun <command>`. > > And don't try to `eselect opengl set nvidia`. This won't work for the > described reasons. You need to `eselect opengl set xorg-x11`. > > > I think I will try that sometime > > It's actually quite easy and the Nvidia Optimus support by bumblebee is > pretty good. > > The reason why this is done this way is power saving. 3D rendering is > pretty power-consuming. > > Heiko > >
