$ optirun -b none nvidia-settings -c :8 [ 70.861063] [ERROR]Cannot access secondary GPU - error: [XORG] (EE) \
Failed to load module "nvidia" (module does not exist, 0) [ 70.861138] [ERROR]Aborting because fallback start is disabled.
The above is the problem I've encountered recently during NVIDIA proprietary driver installation on Fedora 31. Here're some details about a kernel and graphics card:
$ uname -r 5.4.13-201.fc31.x86_64 $ lspci -vnn | grep '\''[030[02]\]' 00:02.0 VGA compatible controller [0300]: Intel Corporation 3rd Gen Core \
processor Graphics Controller [8086:0166] (rev 09) (prog-if 00 [VGA controller])
01:00.0 VGA compatible controller [0300]: NVIDIA Corporation GK107M \
[GeForce GT 650M] [10de:0fd1] (rev ff) (prog-if ff)
I followed these instructions - https://docs.fedoraproject.org/en-US/quick-docs/bumblebee/index.html#_installation_nvidia_proprietary_driver. But after system restart "nvidia" module failed to load.
Here's a good troubleshooting page - https://github.com/Bumblebee-Project/Bumblebee/wiki/Troubleshooting. But there was nothing related to the mentioned error.
After reviewing bumblebee config I found out that "nvidia" module was actually missed:
$ grep "XorgModulePath" /etc/bumblebee/bumblebee.conf XorgModulePath=/usr/lib64/nvidia/xorg,/usr/lib64/xorg/modules $ find /usr/lib64/xorg/modules -iname *nvidia* $
Installing nvidia-driver and restarting the system solved the problem:
$ sudo dnf install nvidia-driver $ find /usr/lib64/xorg/modules -iname *nvidia* /usr/lib64/xorg/modules/drivers/nvidia_drv.so /usr/lib64/xorg/modules/extensions/libglxserver_nvidia.so
