[QUESTION] Help me understand Hybrid Mode

[BurningFury]

Have a DELL XPS 7590 with integrated Intel/Nvidia gpus, and when running Hybrid Mode, the system sometimes hangs, and other times seems to work fine.
When running EnvyControl, it automatically deletes whatever xorg.conf file in /etc/X11/ thus making the system unresponsive. Question is: if there's no xorg.conf file to reference, how does EnvyControl sets the parameters/options needed to run from?

If one runs nvidia-xconfig, it generates a xorg.conf file with all the options needed to run the X server, but it hangs (get black screen, system is unresponsive), but when running EnvyControl, it deletes said file, and there's no config to use here. So what's the secret? Does EnvyControl reads from a file located on a different directory?
Under a xorg.conf file one can specify even more parameters to add: screen tearing, color depth, etc, so having that is def a bonus here.

Maybe I'm getting confused with the process, but would appreciate an explanation as of why the system tends to hang when there's a xorg.conf file and when it runs smooth when there's none.
Thanks for the help in advance.

[codedusting]

Same question. For me, the Hybrid switch broke my kvm-qemy gpu passthrough entirely. even after removing envycontrol, it just doesn't work. Pathetic experience.