Since the update of nvidia-glx-driver to 410.X my system is using llvmpipe instead of the Nvidia driver. I'm using a GTX 970.
$ sudo glxinfo | grep renderer GLX_MESA_multithread_makecurrent, GLX_MESA_query_renderer, GLX_EXT_visual_rating, GLX_MESA_copy_sub_buffer, GLX_MESA_query_renderer, Extended renderer info (GLX_MESA_query_renderer): OpenGL renderer string: llvmpipe (LLVM 6.0, 256 bits)
$ lspci | grep VGA 01:00.0 VGA compatible controller: NVIDIA Corporation GM204 [GeForce GTX 970] (rev a1)
in dmesg:
[ 1.937683] nvidia: loading out-of-tree module taints kernel. [ 1.937693] nvidia: module license 'NVIDIA' taints kernel. [ 1.937693] Disabling lock debugging due to kernel taint [ 1.952190] nvidia-nvlink: Nvlink Core is being initialized, major device number 245 [ 1.952492] nvidia 0000:01:00.0: vgaarb: changed VGA decodes: olddecodes=io+mem,decodes=none:owns=io+mem [ 2.980116] nvidia-modeset: Loading NVIDIA Kernel Mode Setting Driver for UNIX platforms 410.66 Wed Oct 10 12:30:32 CDT 2018 [ 2.982312] [drm] [nvidia-drm] [GPU ID 0x00000100] Loading driver [ 2.982314] [drm] Initialized nvidia-drm 0.0.0 20160202 for 0000:01:00.0 on minor 0 [ 3.004645] nvidia-uvm: Loaded the UVM driver in 8 mode, major device number 241
Xorg.0.log: