i915 flickering in new XPS13 9380 (2019)
Submitted by Paulo J. Matos
Assigned to Ville Syrjälä
Created attachment 144092
dmesg from boot
This was previously reported here: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1826125
Brand new XPS 13 9380 arrived a couple of days ago from Dell with Ubuntu 18.04 preinstalled.
Flickering started immediatelly post boot and it was constant.
I updated BIOS from 1.1.1 to 1.2.1, tried i915.fastboot and i915.enable_rc6 combinations to no avail.
Updated to Ubuntu 19.04 and kernel-5 to no avail. However flickering changed from constant to only if there's a screen refresh.
Videos pre kernel 5:
Videos post kernel 5:
I attach dmesg from boot.
Attachment 144092, "dmesg from boot":