(II) LoadModule: "glx"
(II) Loading /usr/lib/xorg/modules/extensions/libglx.so
(II) Module glx: vendor="X.Org Foundation"
	compiled for 7.0.0, module version = 1.0.0
	ABI class: X.Org Server Extension, version 0.2
(II) Loading sub module "GLcore"
(II) LoadModule: "GLcore"
(WW) Warning, couldn't open module GLcore
(II) UnloadModule: "GLcore"
(II) UnloadModule: "glx"
(II) Unloading /usr/lib/xorg/modules/extensions/libglx.so
(EE) Failed to load module "glx" (a required submodule could not be loaded, 0)
...

(WW) Warning, couldn't open module nvidia
(II) UnloadModule: "nvidia"
(EE) Failed to load module "nvidia" (module does not exist, 0)