libglx improperly configures drivers

[4zbest]

Select the version

25.1.X

Describe your issue

I recently moved from Xorg to Xlibre using the meta package. Installation went smooth, first boot immediately failed.

Rebooted with linux61 kernel, then everything works as expected.

I normally boot with the Xanmod kernel but this fails because Xlibre mismanages the driver priority:

[2026-07-13 06:28:21] (II) LoadModule: "glx"
[2026-07-13 06:28:21] (II) Loading /usr/lib/xorg/modules/xlibre-25/extensions/libglx.so
[2026-07-13 06:28:21] (II) Module glx: vendor="X.Org Foundation"
[2026-07-13 06:28:21] 	compiled for 1.25.1.8, module version = 1.0.0
[2026-07-13 06:28:21] 	ABI class: X.Org Server Extension, version 11.0
[2026-07-13 06:28:21] (II) Applying OutputClass "nvidia" to /dev/dri/card1
[2026-07-13 06:28:21] 	loading driver: nvidia
[2026-07-13 06:28:21] (II) Applying OutputClass "NVidia" to /dev/dri/card1
[2026-07-13 06:28:21] 	loading driver: nvidia
[2026-07-13 06:28:21] (==) Matched nouveau as autoconfigured driver 0
[2026-07-13 06:28:21] (==) Matched modesetting as autoconfigured driver 1
[2026-07-13 06:28:21] (==) Matched nvidia as autoconfigured driver 2
[2026-07-13 06:28:21] (==) Matched nv as autoconfigured driver 3
[2026-07-13 06:28:21] (==) Matched fbdev as autoconfigured driver 4
[2026-07-13 06:28:21] (==) Matched vesa as autoconfigured driver 5
[2026-07-13 06:28:21] (==) Assigned the driver to the xf86ConfigLayout

Here's how it looks with linux61 kernel:

[2026-07-13 06:44:30] (II) LoadModule: "glx"
[2026-07-13 06:44:30] (II) Loading /usr/lib/xorg/modules/xlibre-25/extensions/libglx.so
[2026-07-13 06:44:30] (II) Module glx: vendor="X.Org Foundation"
[2026-07-13 06:44:30] 	compiled for 1.25.1.8, module version = 1.0.0
[2026-07-13 06:44:30] 	ABI class: X.Org Server Extension, version 11.0
[2026-07-13 06:44:30] (II) Applying OutputClass "nvidia" to /dev/dri/card0
[2026-07-13 06:44:30] 	loading driver: nvidia
[2026-07-13 06:44:30] (II) Applying OutputClass "NVidia" to /dev/dri/card0
[2026-07-13 06:44:30] 	loading driver: nvidia
[2026-07-13 06:44:30] (==) Matched nvidia as autoconfigured driver 0
[2026-07-13 06:44:30] (==) Matched nouveau as autoconfigured driver 1
[2026-07-13 06:44:30] (==) Matched modesetting as autoconfigured driver 2
[2026-07-13 06:44:30] (==) Matched nv as autoconfigured driver 3
[2026-07-13 06:44:30] (==) Matched fbdev as autoconfigured driver 4
[2026-07-13 06:44:30] (==) Matched vesa as autoconfigured driver 5
[2026-07-13 06:44:30] (==) Assigned the driver to the xf86ConfigLayout

Steps to reproduce

Boot Xlibre with current Xanmod kernel and Nvidia 580xx drivers

What did you expect?

No response

Additional Information

No response

Extra fields

• I have checked the existing issues
• I have read the Contributing Guidelines
• I'd like to work on this issue

[fish4terrisa-MSDSM]

Are u using nouveau or nvidia's open gpu module here? There're some issues about gpu detection and loading drivers currently I believe, as a workaround u can specify the driver to use in Xorg.conf

[callmetango]

@4zbest Thank you for creating the bug report! Could you please provide more information about the distribution you're using, the relevant packages you installed like any Nvidia kernel modules, the kernel versions, and maybe attach the Xorg.0.logs as well?

[4zbest]

@4zbest Thank you for creating the bug report! Could you please provide more information about the distribution you're using, the relevant packages you installed like any Nvidia kernel modules, the kernel versions, and maybe attach the Xorg.0.logs as well?

This is one of my test systems. It is Manjaro XFCE on the unstable branch, this is basically a direct mirror of Arch Linux's main repository. In addition it uses the Chaotic repo, mostly for the Xanmod kernel.

As a fallback kernel i use Manjaro's linux61 package.

Graphics card is a Geforce GTX 970 running with nvidia-580xx-dkms driver, version 580.173.02-3

I can supply Xorg logs later this week.

[4zbest]

I found the log files. Do note, I am currently running Xorg so i cannot test Xlibre right now.

linux61_Xorg.0.log
xanmod_Xorg.0.log

[callmetango]

@4zbest Thank you very much for adding the context and logs!