OS: Ubuntu 16.04
Kernel: kernel 4.4.0-169-generic
Product Name: Del XPS 13-9360, Dell 470-ABRY DA200 Adapter
Firmware: 0.2.12.0
BIOS: Version 2.12.0, Thunderbolt BIOS Security Level none
The Problem
If I connect an external monitor via thunderbolt 3 port, the monitor gets power, but says "No signal". The display on the laptop shows short sequences of a black screen every 10 secs or so. On Windows (dual-boot) it works fine.
dmesg | grep thunderbolt
shows no output.
lspci -nn | grep thunderbolt
shows no output.
lsmod | grep thunderbolt
shows no output.
fwupdmr get-devices
shows:
...
Unknown Device
Guid: 3ec3df3a-2290-56e5-9d2f-eda62e9ab50b
DeviceID: ro__sys_devices_pci0000_00_0000_00_02_0
Plugin: udev
Flags: internal|locked
DeviceVendor: Intel Corporation
Created: 2019-11-17
The Questions
Is the Unknown Device the problem?
Is there a way to log errors while the monitor is connected to the laptop?
Why can't the kernel find or create the thunderbolt 3 module?
Is there a way to manually load the thunderbolt 3 module into the kernel?
I am grateful for your input, but keep in mind that I just have basic knowledge on ubuntu.