Bug#900248: nvidia-driver: update to 390.59 breaks direct rendering

[Andreas Beckmann]

On 2018-05-31 11:12, Luca Boccassi wrote:
> On Thu, 2018-05-31 at 11:07 +0200, Peter De Wachter wrote:
>>> Fortunately another user reported a possible alternative, if you
>>> have
>>> time could you please try to drop a nvidia.conf in
>>> /usr/share/X11/xorg.conf.d with the following content:
>>>
>>> Section "OutputClass"
>>>         Identifier      "Nvidia Modules"
>>>         MatchDriver     "nvidia-drm"
>>>         Driver          "nvidia"
>>>         Option          "AllowEmptyInitialConfiguration" "true"
>>>         ModulePath      "/usr/lib/nvidia"
>>> EndSection

Given that we already have
/etc/nvidia/current/nvidia-drm-outputclass.conf
with this content:

Section "OutputClass"
    Identifier     "nvidia"
    MatchDriver    "nvidia-drm"
    Driver         "nvidia"
EndSection

Does changing this to

Section "OutputClass"
    Identifier     "nvidia"
    MatchDriver    "nvidia-drm"
    Driver         "nvidia"
    ModulePath     "/usr/lib/xorg/modules/linux"
EndSection

(and reverting any other workarounds applied to the module)
fix the issue?
(that should be the minimal amount of changes ...)

Does this work with the xorg in stretch, too?
(as in "it does not break the driver/xorg in stretch")
(such that we hopefully don't have to handle stretch+buster differently)

Andreas