Comment 160 for bug 1803179

Ok here are more tests:

Disabling the audio part with your suggestion ist working.
No NVIDIA audio in powertop nor in lspci.

Your solution is basically loading / unloading the nvidia modul now, which indeed is working, but not the optimus part I think?

As soon as I try acpi the freeze is happening again after one or two times running lspci.

And here the real problem starts:

Just loading and afterwards unloading the nvidia module wakes up the card from the real disabled state. Even powertop telling 0% usage of the nvidia card my power consumption is not going below 11W again.

So the issue here is: You're way is not triggering the real shutdown for the nvidia card as you're just unloading the module.

The difference in using bbswitch (which leads to freezes for you as well) is that this will do the acpi calls and really powering down the card, which leads to the freezes...

For some users it might be fully ok to just use load / unload nvidia as it make a difference for the power consumption.

But for me it's around 1/3 missing runtime, which relly hurts me :)

But perhaps you could try my workaround with two boot entries and check the power consumption on your side, when running intel only?

for me it's around 7-8W intel only and around 11W when using your workaround.
But again your solution is just not really disabling the nvidia card, instead it's more like just not using it and let it stay in idle mode with limited PM.