I am trying to get an external monitor (Dell) working on my laptop (dell) via a ubc-c docking station (dell). and I am having some issue - Running on an up to date Manjaro (5.4.28-1)
Basically while in KDE, the 2nd monitor is detected correctly and signal is going, but I have no image. I can't figure out what is going on. If move to a tty (ctrl+alt+F2) the second screen comes to life. If I boot on my win session (same laptop) all is working good.
I have tryied the xf86-video-intel driver, but it is just broken. KDE is unsuable so I had to revert back to modeseting.
Any suggestion most welcome.