Can you please:
1. Remove radeon.dpm=0 and reproduce the bug at least once; then
2. Add radeon.dpm=0 and collect the log from the previous faulty boot:
journalctl -b-1 > previous_boot.txt
3. Attach the file previous_boot.txt here.
** Tags added: radeon
** Changed in: gnome-shell (Ubuntu)
Status: New => Incomplete
** Also affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu)
Status: New => Incomplete
** Package changed: gnome-shell (Ubuntu) => mutter (Ubuntu)
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https://bugs.launchpad.net/bugs/1789474
Title:
Unable to boot without radeon.dpm=0
Status in linux package in Ubuntu:
Incomplete
Status in mutter package in Ubuntu:
Incomplete
Bug description:
After selecting Ubuntu in the grub menu, I am greeted with a black
screen that flashes text and the computer reboots. This keeps
happening until I edit the boot parameters and add radeon.dpm=0.
I tried to fix the issue by installing a newer version of the kernel
and installing the Oibaf's PPA, but the issue persisted.
Created a new bug without the PPA as instructed here:
https://bugs.launchpad.net/ubuntu/+bug/1786647
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: gnome-shell 3.28.3-0ubuntu0.18.04.2
Uname: Linux 4.18.5-041805-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.2
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Tue Aug 28 19:59:25 2018
DisplayManager: gdm3
InstallationDate: Installed on 2018-08-26 (2 days ago)
InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64
(20180725)
SourcePackage: gnome-shell
UpgradeStatus: No upgrade log present (probably fresh install)
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