The only possibly-related information I can see there is:
Jun 12 06:17:30 hero boltd[7027]: power: setting force_power to ON
Jun 12 06:17:30 hero boltd[7027]: power: state changed: supported/on
Jun 12 06:17:30 hero boltd[7027]: power: guard '3' for 'fwupd' active
which may be relevant because DisplayPort and Thunderbolt are the same
bus, at least for Intel GPUs. So a few more ideas to try:
1. Disable fwupd, with something like:
sudo systemctl stop fwupd.service
sudo systemctl disble fwupd.service
2. Disable Night Light. There have been some bug reports, and
suggestions from upstream, that gnome-settings-daemon managing the
colour profile separately to the power state is causing some confused
states.
3. If all else fails, report the issue upstream:
https://gitlab.gnome.org/GNOME/mutter/issues
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https://bugs.launchpad.net/bugs/1882462
Title:
Displays wake up pre-maturely (likely driven by notification)
Status in gnome-shell package in Ubuntu:
Confirmed
Bug description:
After a period of time, my displays go to sleep as they should.
However, I often come back to find that the displays are awake, the
mouse pointer is on a screen, but the screens are otherwise black.
They're in this weird "awake but not fully on" mode. At that point,
they will not go back to sleep as they should unless I fully awake
them and let them go back to sleep.
I don't know exactly what triggers the "half awake" but I suspect it's
a notification. The displays shouldn't turn on without a user action.
It wastes power and is clearly broken. I've attached a photo for an
example.
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: gnome-shell 3.36.2-1ubuntu1~20.04.1
ProcVersionSignature: Ubuntu 5.4.0-33.37-generic 5.4.34
Uname: Linux 5.4.0-33-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.11-0ubuntu27.2
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Sun Jun 7 16:10:20 2020
DisplayManager: gdm3
InstallationDate: Installed on 2018-07-24 (684 days ago)
InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64
(20180724)
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
RelatedPackageVersions: mutter-common 3.36.2-1ubuntu1~20.04.1
SourcePackage: gnome-shell
UpgradeStatus: Upgraded to focal on 2020-01-07 (152 days ago)
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