[Nouveau] Custom xorg.conf file to enable Optimus support.

[Ilia Mirkin]

Unfortunately having config files with Device sections negates the
autoprobing that X does, so you don't get the second GPU. You can use
DRI3 for the offloading, which doesn't require X to do anything, but
it does require you to enable DRI3 on the intel driver (Option "DRI"
"3" iirc). See http://nouveau.freedesktop.org/wiki/Optimus/ for some
details.

  -ilia

On Sat, Jul 4, 2015 at 1:12 PM, Alfonso Commer <acommn at gmail.com> wrote:
> Hello!
>
> I've searching the internet for a custom way to enable Optimus support
> (through XRANDR and PRIME) but with no success.
>
> The problem is as follows:
>
> 1. I have two GPU inside this computer (Intel HD series and a Nvidia Geforce
> GTX 860M), the computer is a Lenovo Y50-70.
> 2. I've writen two custom xorg configuration files (that are inside my
> /etc/X11/xorg.conf.d/ configuration directory) to enable/change certain
> options (TearFree and AccelMethod primarily).
> 3. When the two configuration files are inside the configuration directory,
> I only get the Intel GPU as the output for the command "xrandr
> --listproviders" and therefore not able to use the PRIME feature for some
> applications I want to be run with the Nvidia GPU (after executing the
> command "xrandr --setprovideroffloadsink <provider> <sink>").
> 4. When the two configuration files are not inside the configuration
> directory, I get both GPUs (Intel & Nvidia) and can use the PRIME feature
> and everything works as expected, but not with the desired "AccelMethod"
> changes and the "TearFree" option enabled.
>
> So, the question is, is there a way to have my custom configuration files
> (with the desired options enabled) and have PRIME feature working at the
> same time? Maybe through a custom xorg.conf configuration file? Could anyone
> point me in the right direction?
>
> Thank you very much in advance for your attention and information you can
> give me.
>
> P.D. I send my two configuration files if they end up being useful.
>
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