After a new installation of Loki 0.4.1, the system boots fine but has some issues with freezing on booting and suspending. As per discussions, installing the proprietary nVidia drivers provided through the AppCenter fixes this issue.
However, once installed, the PRIME profile is by default on
nvidia. Changing this to
sudo prime-select intel on the command line, or through the
nvidia-settings gui, and then rebooting, causes the system to freeze.
This freeze occurs after the elementaryos logo on boot. Removing
quiet slash from grub to see what's going on reveals a single
failed status item:
[FAILED] Failed to start the NVIDIA Persistence Daemon. See 'systemctl status nvidia-persistenced.service' for details.
This particular issue is fixed following suggestions here.
Once fixed, the boot sequence reveals no
failed items, but there remains no change in the freezing behavior. The system is unresponsive to any commands and requires a hard reset.
Booting into recovery mode and switching back to
sudo prime-select nvidia at the command line allows the user to reboot back into gpu-mode, but at the cost of losing access to the intel power-saving mode (e.g. fans constantly running, etc.)
This is occurs on a Razer Blade v4 with GTX 970m and Intel i7–6700HQ.