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[Romuald <1234546@xxxxxxxxxxxxxxxxxx>]

Oups, forgot to write that this affects all Ubuntu flavours. I also
tested with a Xubuntu 13.10 Beta Live USB.

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https://bugs.launchpad.net/bugs/1234546

Title:
  Plymouth screen refresh is bad when Live USB is started in UEFI mode

Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  Test computer : Dell XPS 13 L322x with Intel Graphics HD4000.

  I burnt a Live Ubuntu Gnome 13.10 USB, first with the Beta 1, and with
  the 2013-09-30 daily image. This USB key has been created with Rufus
  under Windows and is compliant for both UEFI and Bios mode.

  If I boot on the key in Bios mode, no problem, I see the first screen
  in text mode (Install, test only...). After having chosen "test only",
  I see the Gnome footprint and everything runs.

  If I boot the key in UEFI mode (SecureBoot is disabled), I see the
  first screen. After having chosen "test only", plymouth starts but the
  screen refresh frequency is bad, so I have many footprints on the
  screen, etc.

  Everything seems to run fine also, except this screen refresh
  frequency.

  ProblemType: Bug
  DistroRelease: Ubuntu 13.10
  Package: plymouth 0.8.8-0ubuntu8
  ProcVersionSignature: Ubuntu 3.11.0-9.16-generic 3.11.2
  Uname: Linux 3.11.0-9-generic x86_64
  ApportVersion: 2.12.5-0ubuntu1
  Architecture: amd64
  Date: Thu Oct  3 09:00:43 2013
  DefaultPlymouth: /lib/plymouth/themes/ubuntu-gnome-logo/ubuntu-gnome-logo.plymouth
  InstallationDate: Installed on 2013-09-22 (10 days ago)
  InstallationMedia: Ubuntu-GNOME 13.10 "Saucy Salamander" - Alpha amd64 (20130903)
  MachineType: Dell Inc. Dell System XPS L322X
  MarkForUpload: True
  ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-9-generic.efi.signed root=UUID=529ee009-cfab-4b00-832d-5390f382f988 ro quiet splash vt.handoff=7
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-9-generic.efi.signed root=UUID=529ee009-cfab-4b00-832d-5390f382f988 ro quiet splash vt.handoff=7
  SourcePackage: plymouth
  TextPlymouth: /lib/plymouth/themes/ubuntu-gnome-text/ubuntu-gnome-text.plymouth
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 05/15/2013
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A09
  dmi.board.name: 0PJHXN
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.chassis.version: 0.1
  dmi.modalias: dmi:bvnDellInc.:bvrA09:bd05/15/2013:svnDellInc.:pnDellSystemXPSL322X:pvr:rvnDellInc.:rn0PJHXN:rvrA00:cvnDellInc.:ct8:cvr0.1:
  dmi.product.name: Dell System XPS L322X
  dmi.sys.vendor: Dell Inc.

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