Crash if bbswitch module is not installed

When using the command optimus-manager --switch nvidia it gets stuck in tty1. Switching to other tty and back doesn’t resolve the issue.

System info Please include : distro: Archlinux desktop manager: Gnome Display manager: lightDM Laptop model: Clevo N850HK optimus-manager: 1.1

Logs optimus-manager-journal.txt

[Askannz]

Yep, the program crashes if bbswitch isn’t installed. That’s totally a bug, fix is on the way.

[yaliv]

It seems that installing bbswitch is “required”, although I don’t change the default setting (switching=none) and I think my laptop and the Nvidia driver (435.21) are capable of handling this.

I got this error when trying to switch to nvidia or hybrid:

Unloading Nvidia modules (if any)
Unloading nouveau module (if any)
Unloading bbswitch module (if any)
ERROR : Nvidia PCI reset failed. Continuing. Error is : Cannot unload bbswitch : Failed to execute 'modprobe -r bbswitch' : modprobe: FATAL: Module bbswitch not found.
Unloading bbswitch module (if any)
Cannot setup GPU : kernel setup error : Cannot unload bbswitch : Failed to execute 'modprobe -r bbswitch' : modprobe: FATAL: Module bbswitch not found.

It doesn’t even create any file in /etc/X11/xorg.conf.d.

I have kernel 5.3 and 5.2 installed and running on 5.3. So when I choose to install linux53-bbswitch package, linux52-bbswitch will be selected as well.

Now the switching works:

Unloading Nvidia modules (if any)
Unloading nouveau module (if any)
Unloading bbswitch module (if any)
Unloading bbswitch module (if any)
Running /etc/optimus-manager/nvidia-enable.sh
Running /etc/optimus-manager/nvidia-disable.sh
Loaded extra Intel Xorg options (0 lines)
Loaded extra AMD Xorg options (0 lines)
Loaded extra Nvidia Xorg options (0 lines)
Writing to /etc/X11/xorg.conf.d/10-optimus-manager.conf