Re: [gentoo-user] Nvidia and optimus

["J. Roeleveld" <joost@antarean.org>]

On Tuesday, December 16, 2014 03:25:08 PM behrouz khosravi wrote:
> On Tue, Dec 16, 2014 at 2:38 PM, J. Roeleveld <joost@antarean.org> wrote:
> > On Tuesday, December 16, 2014 02:12:06 PM behrouz khosravi wrote:
> > > Hello everyone.
> > > I was trying to get native optimus support for my laptop using the
> > > Nvidia
> > > driver, but after startx the screen goes black for some several seconds
> > 
> > and
> > 
> > > xserver exits.
> > > The output messages are attached.
> > > I just added a dot to end of xorg.conf and .xinitrc to bypass it for
> > > now.
> > > Thanks for your time.
> > 
> > Did you install and configure Bumblebee?
> > 
> > I haven't configured anything special myself and got it working following
> > the
> > official documentation:
> > 
> > http://bumblebee-project.org/install.html#Gentoo
> > ****
> > emerge bumblebee
> > 
> > After installation completes, add yourself to the "bumblebee" group to
> > enable
> > use of the optirun command. You will have to re-login for group changes to
> > take effect.
> > ****
> > 
> > --
> > Joost
> 
> I have not tried the bumblebee.
> I just waned to use optimus without that, but it seem the it is not easy!
> I think I will try that sometime

The idea of Optimus is to use the lower-spec GPU for the general activities 
and only enable the higher-spec GPU (NVidia) for processes requiring the extra 
processing power (generally 3D games or rendering).

Using bumblebee, you can start an application using "optirun <application>".
The application then can use the Nvidia-chip. Other applications will still 
use the lower-spec GPU.

--
Joost