I just bought a new dell XPS 13 for work and everything is working smoothly except the external monitor and it's pretty annoying to be tied to the small 13 inch display
I bought an usb C to HDMI cable with thunderbolt 3 support, tested it with my phone and it works on my hdmi screen
but when I plug my laptop I have no signal message
when I run
lspci -tv with the display plugged, I got :
+-1c.4-[03-6d]----00.0-[04-6d]--+-00.0--- | +-01.0-[06-38]-- | +-02.0-----00.0 Intel Corporation JHL6540 Thunderbolt 3 USB Controller (C step) [Alpine Ridge 4C 2016] | -04.0-[3a-6d]--
when I run
xrandr -q I have
Screen 0: minimum 320 x 200, current 3840 x 2160, maximum 8192 x 8192 eDP-1 connected primary 3840x2160+0+0 (normal left inverted right x axis y axis) 294mm x 165mm
DP-1 disconnected (normal left inverted right x axis y axis)
DP-2 disconnected (normal left inverted right x axis y axis)
any clue on how to get external display working ?
xrandr -qany diferent when it's unplugged? Also, do you know whether your external monitor is DisplayLink or DisplayPort?