nvidia_modeset, nvidia_uvm handling

[ArchangeGabriel]

Per #565 and #699 we need to handle the existence of nvidia-modeset and nvidia-uvm.

The unloading of nvidia module failing because of dependencies of above mentioned modules. Very common problem, results in card staying ON.

Part of the fix is using modprobe -r instead of rmmod, but this also needs some aliases file. But at this point, we have one issue: a line as remove nvidia rmmod nvidia-uvm nvidia-modeset nvidia seems to be causing issue if one of them isn’t loaded. This happen for instance when running optirun --no-xorg, where nvidia-modeset do not get loaded. Also, nvidia-uvm does not seems to be automatically loaded anymore with recent versions of the driver.

The second point is who should ship this file: us, or the driver? Finally, is their another fix possible that doesn’t imply explicitly coding the removal of this driver in bumblebee?

[ArchangeGabriel]

Also, we might need to take care of loading too according to #604.

[karolherbst]

well for me

remove nvidia modprobe -r --ignore-remove nvidia-modeset nvidia-uvm nvidia

works

[karolherbst]

ohh it even works without --ignore-remove, so why does it fail for others?

[karolherbst]

ohh, in the optirun --no-xorg case "--ignore-remove" helps :)

[hadronized]

Same problem here. This fixed the issue though:

sudo rmmod nvidia_modeset
sudo rmmod nvidia
sudo tee /proc/acpi/bsswitch <<< OFF

modprobe -r nvidia-modeset nvidia-uvm nvidia
tee /proc/acpi/bbswitch <<< OFF

Works for me

[doraskayo]

It appears that this relatively simple issue renders power management completely useless on every updated NVIDIA driver.

@ArchangeGabriel, any chance this can be hotfixed as v3.2.2?