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[Tobias Lausch <tobias.lausch@xxxxxxxxxxx>]

Public bug reported:

Unity uses sse4 instructions which are not available on older  celeron
or pentium cpus.

The instruction being used causing unity to crash is
PEXTRD

In this case one cannot login into the default unity session.
current workaround is to install gnome.

ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: unity 7.3.2+15.04.20150420-0ubuntu1 [modified: usr/bin/unity]
ProcVersionSignature: Ubuntu 3.19.0-21.21-generic 3.19.8
Uname: Linux 3.19.0-21-generic x86_64
ApportVersion: 2.17.2-0ubuntu1.1
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CurrentDesktop: GNOME
Date: Tue Jun 30 14:32:20 2015
InstallationDate: Installed on 2015-06-29 (0 days ago)
InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
SourcePackage: unity
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: unity (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug gnome3-ppa third-party-packages vivid

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https://bugs.launchpad.net/bugs/1470097

Title:
  Unity does not support cpus without sse4

Status in unity package in Ubuntu:
  New

Bug description:
  Unity uses sse4 instructions which are not available on older  celeron
  or pentium cpus.

  The instruction being used causing unity to crash is
  PEXTRD

  In this case one cannot login into the default unity session.
  current workaround is to install gnome.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.04
  Package: unity 7.3.2+15.04.20150420-0ubuntu1 [modified: usr/bin/unity]
  ProcVersionSignature: Ubuntu 3.19.0-21.21-generic 3.19.8
  Uname: Linux 3.19.0-21-generic x86_64
  ApportVersion: 2.17.2-0ubuntu1.1
  Architecture: amd64
  CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
  CurrentDesktop: GNOME
  Date: Tue Jun 30 14:32:20 2015
  InstallationDate: Installed on 2015-06-29 (0 days ago)
  InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
  SourcePackage: unity
  UpgradeStatus: No upgrade log present (probably fresh install)

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