How to make xinit / startx to read my custom xorg.conf.d files?

[Thomas Lübking]

This has nothing to do w/ xinit or lightdm.
The driver match isn't met because of a race condition that has the GPU
not ready before systemd kicks off the graphical.target.
https://wiki.archlinux.org/title/NVIDIA#DRM_kernel_mode_setting
https://wiki.archlinux.org/title/Kernel_mode_setting#Early_KMS_start

Am Fri, Jul 09, 2021 at 01:55:28AM +0000 schrieb Me:
>I am running Arch Linux with the i3 window manager.  Today I switched
>from lightdm to xorg-xinit.  I have read the available documentation,
>and configured things so that startx will start and run the X server,
>and i3wm runs fine after that.  However, I have one very important
>problem that I cannot find an answer to.
>
>I have a Nvidia GPU with proprietary drivers installed, and I have
>created a file named 10-nvidia-drm-outputclass.conf in the
>/usr/share/X11/xorg.conf.d/ directory.  The contents of that conf file
>are as follows:
>
>
>Section "OutputClass"
>    Identifier "nvidia"
>    MatchDriver "nvidia-drm"
>    Driver "nvidia"
>    Option "AllowEmptyInitialConfiguration"
>    Option "Coolbits" "28"
>    ModulePath "/usr/lib/nvidia/xorg"
>    ModulePath "/usr/lib/xorg/modules"
>EndSection
>
>
>
>An important line in that file is the Option "Coolbits" "28" line, as
>it allows me to set a custom fan speed for my GPU, which I need for
>these warmer months.
>
>
>When I use startx that conf file is not being read, it seems.  It is
>completely ignored, and I am unable to set a custom fan speed.
>
>Is there a conf file for xinit that I can use, create, or configure
>that will access the 10-nvidia-drm-outputclass.conf file, so that the
>GPU will run cooler via a custom fan speed?
>
>When using lightdm, it works like a charm.  But as I say, xinit seems
>to not see/read/access that file.
>
>Any help would be greatly appreciated!!
>
>C.M.Millington
>--
>Thank you!
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