Notebook screen not working with NVidia graphics only setup

When using video-nvidia driver from Hardware configuration tool, the main notebook screen is not working, shows static Dell picture from boot. But HDMI connected external monitor is working fine.

Notebook has two graphics cards:

  • Intel Corporation UHD Graphics 630 (Mobile)
  • nVidia Corporation GP107M (GeForce GTX 1050 Ti Mobile)

Kernel is 5.4.89-1 LTS recommended.

With video-hybrid-intel-nvidia-prime two monitors work fine, but Steam games do not launch, thats why I use video-nvidia driver.

Same hardware configuration worked fine on Ubuntu 18.04 LTS, so it’s not hardware problem.

What should I do to have two working monitors and start games?