Re: [gentoo-user] trying to use Nouveau

[Andrew Savchenko]

On Sat, 4 Aug 2018 01:48:15 -0400 Philip Webb wrote:
> Last month, I sent in a query re Nouveau : thanks for the replies.
>
> I have emerged it :
>
>   root:508 log> eix nouveau
>     [I] x11-drivers/xf86-video-nouveau
>      Available versions:  1.0.15 1.0.15-r1
>      Installed versions:  1.0.15-r1([2018-07-26 15:39:37])
>      Homepage:            https://nouveau.freedesktop.org/wiki/
>      Description:         Accelerated Open Source driver for nVidia cards
>
> I have tried to switch to it with 'eselect opengl set xorg-x11' :
>
>   root:507 log> eselect opengl list
>   Available OpenGL implementations:
>   [1]   nvidia
>   [2]   xorg-x11 *
>
> I have renamed  /lib/udev/rules.d/99-nvidia.rules  by appending '.dft',
> as recommended in the Wiki.
>
> But when I 'startx' & then check  /var/log/Xorg.0.log , I find :
>
>   (II) Module glx: vendor="X.Org Foundation"
>      compiled for 1.19.5, module version = 1.0.0
>      ABI class: X.Org Server Extension, version 10.0
>   (II) LoadModule: "nvidia"
>   (II) Loading /usr/lib64/xorg/modules/drivers/nvidia_drv.so
>   (II) Module nvidia: vendor="NVIDIA Corporation"
>      compiled for 4.0.2, module version = 1.0.0
>      Module class: X.Org Video Driver
>   (II) NVIDIA dlloader X Driver  390.67  Fri Jun  1 02:45:19 PDT 2018
>   (II) NVIDIA Unified Driver for all Supported NVIDIA GPUs
>   (--) using VT number 7
>
> I suspect that I need to re-merge some pkgs ;
> I have added 'nouveau' to  VIDEO_CARDS  in  make.conf ,
> but it won't have an effect until a pkg is re-merged.
>
> Can anyone offer advice what to try next ?

Your xorg.conf (or a file from xorg.conf.d directory) must contain
the following:

Section "Device"
    Identifier  "Card1"
    Driver      "modesetting"
... (some options may follow)
EndSection

You probably name `Driver "nvidia"` there right now.

Best regards,
Andrew Savchenko