[Bug 2083299] Re: Ubuntu 24.04: Occasionally screen stays black while booting

[Daniel van Vugt]

Yes Ubuntu 24.04 introduced SimpleDRM, which is used for early boot
graphics now. But there are a lot of moving parts and still some bugs.

** No longer affects: linux (Ubuntu)

** Summary changed:

- Ubuntu 24.04: Occasionally screen stays black while booting
+ Disk unlock prompt is never displayed. Screen stays black.

** Changed in: plymouth (Ubuntu)
       Status: Incomplete => New

** Tags added: simpledrm

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Title:
  Disk unlock prompt is never displayed. Screen stays black.

Status in plymouth package in Ubuntu:
  New

Bug description:
  Unfortunately the screen stays black before password prompt shows up. 
  This happens since I've migrated from 22.04 to 24.04. 
  Even a fresh install shows the same symptoms.

  What helps is to detach the HDMI cable, attach it again and the TV
  shows the password prompt for luks.

  I did not try yet the removal of "splash" in the parameters. As this
  was indicated by others who faced the same issue.

  ProblemType: Bug
  DistroRelease: Ubuntu 24.04
  Package: gdm3 46.0-2ubuntu1
  ProcVersionSignature: Ubuntu 6.8.0-45.45-generic 6.8.12
  Uname: Linux 6.8.0-45-generic x86_64
  ApportVersion: 2.28.1-0ubuntu3.1
  Architecture: amd64
  CasperMD5CheckResult: unknown
  CurrentDesktop: ubuntu:GNOME
  Date: Tue Oct  1 08:12:07 2024
  InstallationDate: Installed on 2024-09-29 (2 days ago)
  InstallationMedia: Ubuntu 24.04.1 LTS "Noble Numbat" - Release amd64 (20240827.1)
  ProcEnviron:
   LANG=de_DE.UTF-8
   PATH=(custom, no user)
   SHELL=/bin/bash
   TERM=xterm-256color
   XDG_RUNTIME_DIR=<set>
  SourcePackage: gdm3
  UpgradeStatus: No upgrade log present (probably fresh install)

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