I use 18.10 and want to use an external monitor. The display of the GUI on the build-in laptop screen is ok, but when I plug in an external monitor using HDMI, it is not detected.
randr says its disconnected. But in reality it is connected. I have 2 different graphics cards in my laptop: Intel UHD630 and Nvidia Quadro600. I tried to switch between them, but the Nvidia 390 drivers (which are the distro included ones) are not loaded. I also tried the
ppa:grahics-drivers repository ones, but they don't work either. Checked via
lsmod. Can anyone help me please? Or has anyone ever had this problem before? If yes, what was the solution?
The system-info in the systems-settings-app: says Intel UHD graphics. Is there any way to change graphics cards/drivers or make the Intel card recognize the external monitor?
Edit: The problem still exists in 18.04.5