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

Martin Spacek launchpad at mspacek.mm.st
Fri Sep 7 08:43:53 UTC 2012

I had the same problem (screen corruption, failure to get into desktop,
Xorg crash, noveau idle channel messages), booting off the latest
Xubuntu 12.10 amd64 liveusb on my ThinkPad W510 with NVidia GT216
(Quadro FX 880M) graphics. Once in a while I'd make it through bootup
into xfce, but mostly not. Sometimes switching to a TTY and typing
"startx" would work, but usually not. Booting with "nomodeset" seemed to
fix the problem, but then once I got into the desktop, the resolution
was too low (1024x768). Perhaps that's not surprising.

Next, I did an update from the repos. Updates included a bunch of Xorg
and nouveau stuff, and at the same time I enabled the latest NVidia
blob. Now I don't have this problem anymore. Not sure if it was the
updates or the switch to the nvidia blob that fixed this liveusb.

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  live cd is unusable due to video degradation

Status in “ubiquity” package in Ubuntu:

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)
   PATH=(custom, no user)
  SourcePackage: ubiquity
  UpgradeStatus: No upgrade log present (probably fresh install)

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