Not sure if ACPI kernel boot parameters would be required for your laptop model, but AFAIK the
acpi_osi=! acpi_osi='Windows 2012' works in most cases. A second guess would be
Is hard to tell, so probably a bit of tinkering and experimenting/testing is required from your part.
What i want to make sure is that you have installed only the
video-hybrid-intel-nvidia-440xx-prime driver, and no other. Not sure when the
video-hybrid-intel-nvidia-450xx-prime will arrive to stable branch, but that might be best choice and hassle free option. (based on rumors, not tested by myself, so don’t quote me on that)
will display what drivers you have installed. Remove any other driver if is installed except the mentioned one. Then, i would add this kernel boot parameter
Once this is done, you should have a functional laptop and be able to make use of the
prime-offload capability, aka run
prime-run glxinfo as example, so
prime-run application would launch that application using the dGPU (Nvidia).
To have even more options and control over this, the
optimus-manager would be a good choice. I had no time to bring the old tutorial here from the archived forum, so i apologize to send you over there to check it out. Let me know how it goes.