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[Bug 1405349] Re: switching to activated guest session causes screen blank

 

This bug was fixed in the package unity -
7.3.2+15.10.20150627.1-0ubuntu1

---------------
unity (7.3.2+15.10.20150627.1-0ubuntu1) wily; urgency=medium

  [ Andrea Azzarone andrea.azzarone@xxxxxxxxxxxxx ]
  * Fix a regression with urgent icons not showing up if launcher is
    hidden. (LP: #1450991)
  * Make sure new icons are added to the model before calling
    SortAndUpdate. (LP: #1458950)
  * This likely could fix
    https://bugs.launchpad.net/ubuntu/+source/unity/+bug/1451613. At
    least the backtraces posted there suggest this. But I think that
    those backtraces are just leftovers of old crashes-on-unloading.

  [ CI Train Bot ]
  * New rebuild forced.

  [ Chris Townsend ]
  * Allow mouse clicks that are not in the visible area of the Quicklist
    to pass through down to the Launcher icon. Fixes a failing AP test.
    (LP: #1456245)

  [ Luke Yelavich ]
  * Implement filter results controls accessibility (LP: #1457071)

  [ Marco Trevisan (Treviño) ]
  * ApplicationManager: add missing features, keep a copy of views
    around
  * DecorationsForceQuitDialog: remove deprecated override style
    functions, use CSS
  * GnomeSessionManager: Request ScreenSaver (de)activation on VT
    changes (LP: #1405349)
  * OverlayWindowButtons: trigger a queuedraw also when a child requires
    a redraw (LP: #1461618)
  * PanelMenuView: connect to target window / application title changes
    (LP: #1418449)

 -- CI Train Bot <ci-train-bot@xxxxxxxxxxxxx>  Sat, 27 Jun 2015 04:44:56
+0000

** Changed in: unity (Ubuntu)
       Status: In Progress => Fix Released

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https://bugs.launchpad.net/bugs/1405349

Title:
  switching to activated guest session causes screen blank

Status in OEM Priority Project:
  Confirmed
Status in OEM Priority Project trusty series:
  Confirmed
Status in Unity:
  In Progress
Status in Unity 7.2 series:
  In Progress
Status in unity package in Ubuntu:
  Fix Released
Status in unity source package in Trusty:
  In Progress

Bug description:
  Hi,
  I switch to activated guest session, but the screen remains blank. I have to wake it up with keyboard/mouse action.

  How to reproduce:
  1. login with your account normally.
  2. switch to guest session from the panel menu "Switch Account... -> Guest Session", now it's under guest session and the display is normal.
  3. switch back to your user account, then switch to guest session again.
  4. The screen remains blank.

  Another method:
  1. sudo true && gdbus call --session --dest org.gnome.ScreenSaver \
       --object-path /com/canonical/Unity/Session --method \
       com.canonical.Unity.Session.ActivateScreenSaver && \
       sleep 1 && sudo chvt 1 && sleep 1 && sudo chvt 7

  I can't reproduce this issue under Precise.
  Vivid snapshot 22-Mar-2015 can also reproduce this issue.

  Package:
  lightdm 1.10.3-0ubuntu2
  unity-settings-daemon-14.04.0+14.10.20140606~0ubuntu1
  ---
  ApportVersion: 2.14.1-0ubuntu3.2
  Architecture: amd64
  CurrentDesktop: Unity
  DistributionChannelDescriptor:
   # This is a distribution channel descriptor
   # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor
   canonical-oem-stella-datong140729-kylin-trusty-amd64-20150205-2DistroRelease: Ubuntu 14.04
  InstallationDate: Installed on 2015-02-09 (1 days ago)
  InstallationMedia: Ubuntu 14.04 "Trusty" - Build amd64 LIVE Binary 20150205-07:08
  LightdmConfig:
   [SeatDefaults]
   autologin-guest=false
   autologin-user-timeout=0
   autologin-session=lightdm-autologin
  Package: lightdm 1.10.3-0ubuntu2
  PackageArchitecture: amd64
  ProcVersionSignature: Ubuntu 3.13.0-38.65stella1-generic 3.13.11.8
  Tags: trusty third-party-packages
  Uname: Linux 3.13.0-38-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True

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