Heho, You have one of those fancy dual-cpu things (nvidia optimus); This can be somewhat difficult, see also:
https://wiki.archlinux.org/title/Lenovo_ThinkPad_T530 "When using NVIDIA Optimus the Display port will not be accessible. To have access, change the GPU to discrete in BIOS and auto detect OS to false." It is about how they wired onboard and nv gpu together. With best regards, Tobias > I have a ThinkPad T530, with a recently acquired docking station that I am > finally attempting to use. It doesn't pick up on the displayport to the > external monitor. I have read acpi(4), acpidock(4), sensorsd(8), and > sensorsd.conf(5), and I don't know how to get there. dmesg below sig, > ... > 1:0:0: rom address conflict 0xfff80000/0x80000 vendor "NVIDIA", unknown > product 0x0def (class display subclass VGA, rev 0xa1) at pci1 dev 0 function > 0 not configured > inteldrm0 at pci0 dev 2 function 0 "Intel HD Graphics 4000" rev 0x09 > drm0 at inteldrm0 > inteldrm0: msi, IVYBRIDGE, gen 7
