[Bug 1043518] Re: live cd is unusable due to video degradation with the splash boot option enabled

Steve Langasek steve.langasek at canonical.com
Mon Sep 17 21:43:43 UTC 2012


Please run ' apport-collect -p plymouth 1043518' from the affected system after booting the live cd without splash (do *not* boot with nomodeset).
I would also like to see plymouth debug output from this machine, but I realize that may be difficult to capture if the video is corrupted after boot. By any chance, does switching to vt1 give you uncorrupted video after boot, allowing you to copy files off?

Fwiw, the display here looks like a framebuffer that plymouth (and X) is
expecting to be set up as a linear framebuffer isn't. That's likely to
be a kernel or bootloader bug rather than a plymouth bug. (bearing in
mind that the live cd uses a different bootloader than the installed
system) It may be helpful to test writing the image to a usb stick and
check whether the behavior is the same.

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

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https://bugs.launchpad.net/bugs/1043518

Title:
  live cd is unusable due to video degradation with the splash boot
  option enabled

Status in “plymouth” package in Ubuntu:
  Incomplete
Status in “ubiquity” package in Ubuntu:
  Confirmed

Bug description:
  All images after 08/15 have become unusable, either to install from or to use a live session.
  Images from 08/17 & earlier work fine as does the install itself.

  Attached are 2 possible screens which seem to vary depending on which
  partition grub is configured on in a multi-boot system (12.04 & 12.10

  ProblemType: Bug
  DistroRelease: Ubuntu 12.10
  Package: ubiquity (not installed)
  ProcVersionSignature: Ubuntu 3.5.0-9.9-generic 3.5.0
  Uname: Linux 3.5.0-9-generic x86_64
  ApportVersion: 2.5.1-0ubuntu3
  Architecture: amd64
  Date: Wed Aug 29 16:21:08 2012
  InstallCmdLine: noprompt cdrom-detect/try-usb=true file=/cdrom/preseed/ubuntu.seed boot=casper initrd=/casper/initrd.lz quiet splash --
  InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Alpha amd64 (20120813.1)
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: ubiquity
  UpgradeStatus: No upgrade log present (probably fresh install)

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