I am trying Nvidia vulkan beta driver called "nvidia-355.00.26" on my optimus laptop (intel + nvidia)
You can gen nvidia vulkan beta driver in this PPA: The driver does not create "common" modules like nvidia-current nvidia-shi etc..., but nvidia_355 nvidia_355_uvm nvidiafb
When I set /etc/bumblebee/bumblebee.conf KernelDriver=nvidia_355
I get
Feb 18 14:41:07 usb-tmp bumblebeed[11115]: [13580.233034] [ERROR][XORG] (EE) systemd-logind: failed to get session: PID 11130 does not belong to any known session
Feb 18 14:41:07 usb-tmp bumblebeed[11115]: [13580.233050] [WARN][XORG] (WW) "glamoregl" will not be loaded unless you've specified it to be loaded elsewhere.
Feb 18 14:41:07 usb-tmp bumblebeed[11115]: [13580.233057] [WARN][XORG] (WW) Warning, couldn't open module nvidia355
Feb 18 14:41:07 usb-tmp bumblebeed[11115]: [13580.233061] [ERROR][XORG] (EE) Failed to load module "nvidia355" (module does not exist, 0)
Feb 18 14:41:07 usb-tmp bumblebeed[11115]: [13580.233068] [WARN][XORG] (WW) Warning, couldn't open module nvidia
Feb 18 14:41:07 usb-tmp bumblebeed[11115]: [13580.233072] [ERROR][XORG] (EE) Failed to load module "nvidia" (module does not exist, 0)
I did change /etc/bumblebee/xorg.conf.nvidia
Section "Device"
Identifier "DiscreteNvidia"
Driver "nvidia_355"
VendorName "NVIDIA Corporation"
It looks like a bug?