seems to be a firmware/bios issue on the machine, not the kernel.
** Changed in: linux (Ubuntu Bionic)
Status: Incomplete => Invalid
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https://bugs.launchpad.net/bugs/1765496
Title:
USB-3/PCIe Root/Thunderbolt fail to load
Status in linux package in Ubuntu:
Invalid
Status in linux source package in Bionic:
Invalid
Bug description:
I have been running 18.04 Beta fine for about a week and a half, but
on Monday, after upgrading a bunch of packages and my kernel, My USB-C
external monitors no longer work. They worked fine before. I tried
downgrading the kernel, but that didn't change anything.
I have attached a full dmesg log from boot, and a dmesg log for
repluggig the usb-c cable. the PCIe Root is a Intel Sunrise and the
machine is a Dell XPS 13 9360.
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