After downloading the latest NVIDIA GPU driver for my machine (the latest Kali), I have tried installing the consequent .run file in two different ways:
Installing without nvidia-xconfig, where both monitors work but the system does not recognise the NVIDIA driver, despite installing the console.
Installing with nvidia-xconfig, where only the external monitor works but the system does recognise that one as running the NVIDIA driver and I get no response from the built-in monitor at all.
I am running a Kali-Only Acer Aspire 7 with a NVIDIA GeForce GTX 1050 using the latest driver and latest Kali.
Any shot at getting the built-in monitor to work and keep the driver?
Is there a specific reason you tried to install the latest nvidia drivers?
There is a reason they are not already included in debian-testing and thus kali. If you move out of this consensus to stick to an older version, you are kinda on your own when you run into troubles.
Its not the drivers, its because the inbuilt display is usually connected directly to the internal low power GPU and the external display port is connected directly to the discrete GPU so essentially it needs to ‘switch on’ both GPU’s to have both displays working together, i.e. multiplexing, and typically it uses one or the other not both..