[Bug 1043518] Re: live cd is unusable due to video degradation

[Doug McMahon]

The issue here seems to be the "splash" boot option
If I remove it then booting to the live session or installer works fine, no need for nomodeset, no video degradation at all.

Noticed this also recently when try to boot to an eariler kernel from
grub. With the default boot options was more often than not getting a
degraded unity-greeter that was unusable. Same thing - removing splash &
all was fine

>From a user perspective - I don't even see the complete boot line on the live cd. It ends with splash --
Fotunately splash was visible so it could be removed.. I wonder if some hardware may not even see splash  ..??

** Summary changed:

- live cd is unusable due to video degradation
+ live cd is unusable due to video degradation with the splash boot option enabled

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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 “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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