Sounds like a kernel driver problem. Adding a 'linux' task.
** Also affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags added: radeon
** Summary changed:
- GDM3 fails to load without nomodeset
+ [radeon] GDM3 fails to load without nomodeset
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https://bugs.launchpad.net/bugs/1782347
Title:
[radeon] GDM3 fails to load without nomodeset
Status in gdm3 package in Ubuntu:
New
Status in linux package in Ubuntu:
New
Bug description:
Both with the livecd (usb drive) and the installed version, I must boot with
the 'nomodeset' kernel parameter at GRUB; otherwise GDM3 will not boot (the
screen will keep on flashing in semi-textual mode, with a white mouse arrow
stuck).
This, however, prevents me from using the 'radeon' video driver, dropping me
to a very basic 1024x768 vesa mode.
The bug did NOT occur on Ubuntu 12.04, so it is a regression.
Also, the bug does NOT occur on XUbuntu/XFCE 18.04, so it is a GDM3-Gnome
related thing.
Thanks,
MZ
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: gdm3 3.28.0-0ubuntu1
ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17
Uname: Linux 4.15.0-20-generic x86_64
ApportVersion: 2.20.9-0ubuntu7
Architecture: amd64
CasperVersion: 1.394
CurrentDesktop: ubuntu:GNOME
Date: Wed Jul 18 12:18:06 2018
LiveMediaBuild: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=C.UTF-8
SHELL=/bin/bash
SourcePackage: gdm3
UpgradeStatus: No upgrade log present (probably fresh install)
mtime.conffile..etc.gdm3.custom.conf: 2018-07-18T12:14:53.871895
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