TLDR; Is it possible to physically turn off a built in display for a laptop so a docking station could utilise all available display outs.
I am struggling to physically turn-off a laptops built in display for Ubuntu 20.04. Due to the built in display always being available, when I attempt to connect more than a total of 3 [internal or external] monitors to my Dell Docking Station WD19 Thunderbolt in
Settings > Screen Display I receive the error (in the windows title bar):
Changes Cannot be Applied This could be due to hardware limitations
It is worth noting that the documentation for the docking station states:
NOTE: : Linux operating system is unable to physically turn-off built-in display, the external display numbers will be one less than the display numbers listed in above tables.
- Graphics card:
NVIDIA GeForce GTX 1650 4GB GDDR5
- Graphics driver:
NVIDIA Corporation: TU117M [GeForce GTX 1650 Mobile / Max-Q] - Using NVIDIA driver metapackage from nvidia-driver-440