I just received my new xps 13 9380 with a 4k display and with ubuntu pre-installed and since I started it that I am getting flickring problems.
Could this be a ubuntu configuration problem or should I report a faulty display to Dell?
After checking the BIOS (version 1.2.1 – latest) it might be an ubuntu config issue since there's no flickering so hardware is fine.
Bug in intel drivers causes flickering. See https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1826125 Specifically: https://bugs.freedesktop.org/show_bug.cgi?id=110511#c15