Saving xorg config from NVIDIA X results in built-in display not recognized

[sudhishu]

I face the same problem. According to this post, dual graphics cards setup on laptops is incomplete. According to the post below, if bios supports disabling of switching by disabling the primary graphics chipset, (Mostly Intel) the problem gets resolved because then, the secondary chipset (Nvidia here) drives the builtin-display too. Since my laptop bios does not support that feature, I cannot save the Xserver configuration from Nvidia configuration utility. If saved, the builtin display (eDP-1-1) of laptop goes blank after disk encryption unlock. From there, only the external monitor connected to Nvidia graphics chip works and that display is set as primary. Even disconnecting external monitor does not bring back the builtin panel on. See this thread below -

Setting primary display

Greetings, I am using driver 346.35 on a 64 bit Linux on my Dell Precision M6800 Laptop. The card is a Quadro K3100M. Apparently, my machine has an Intel card and the Nvidia. I got an additional monitor working. The NVidea sees only the second monitor. The normal Linux monitor control sees both. I managed to get it to work but I have two problems, the first is: My machine sees the external/Nvidia monitor as primary. How can I change it so that my laptop screen is primary? I tried xrandr…

Hardware configuration:
HP Envy 15 ep0123tx
Pop!_OS 20.04 LTS
Chip drives builtin panel - Intel UHD graphics
Chip drives external ports: Nvidia GeForce GTX 1660 Ti with MaxQ Design
Nvidia Driver Ver: 470.57.02