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[Bug 1225774] [NEW] Launcher randomly stops showing up when you move the mouse to the left of the screen. Randomly clicking on some window's title bar almost always fixes it

 

Public bug reported:

At random times, and very, very often (I haven't found out what triggers
it), the Launcher stops showing up. That is, you move the mouse all the
way to the left of the screen and the Launcher doesn't show up. You
retry and retry but it won't show up.

Clicking randomly on some window's titlebar and retrying usually fixes
it. Most of the times, clicking on some other part of a window other
than the title bar won't do the trick. I'm not sure this is always the
case, but I'm under the impression it's necessary to click on a window's
titlebar, or at least that is far far more likely to do the trick.

This looks to me unrelated to #1225769, but I'm not sure; there may be
some nontrivial relation. What I can say is that the steps described in
1225769 don't systematically reproduce this one, which is more random,
but I can't tell for example whether or not having used Show Desktop is
a necessary condition to observe this issue.

ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: unity 7.0.0daily13.06.19~13.04-0ubuntu1
ProcVersionSignature: Ubuntu 3.8.0-30.44-generic 3.8.13.6
Uname: Linux 3.8.0-30-generic i686
NonfreeKernelModules: nvidia
ApportVersion: 2.9.2-0ubuntu8.4
Architecture: i386
CompizPlugins: [core,composite,opengl,decor,vpswitch,mousepoll,compiztoolbox,snap,commands,place,resize,session,regex,grid,wall,move,gnomecompat,imgpng,animation,fade,unitymtgrabhandles,workarounds,scale,expo,ezoom,unityshell]
Date: Sun Sep 15 22:25:37 2013
InstallationDate: Installed on 2010-06-23 (1180 days ago)
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
MarkForUpload: True
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: unity
UpgradeStatus: Upgraded to raring on 2013-08-10 (36 days ago)

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


** Tags: apport-bug i386 raring third-party-packages

** Description changed:

  At random times, and very, very often (I haven't found out what triggers
  it), the Launcher stops showing up. That is, you move the mouse all the
  way to the left of the screen and the Launcher doesn't show up. You
  retry and retry but it won't show up.
  
  Clicking randomly on some window's titlebar and retrying usually fixes
  it. Most of the times, clicking on some other part of a window other
  than the title bar won't do the trick. I'm not sure this is always the
  case, but I'm under the impression it's necessary to click on a window's
  titlebar, or at least that is far far more likely to do the trick.
  
  This looks to me unrelated to #1225769, but I'm not sure; there may be
  some nontrivial relation. What I can say is that the steps described in
  1225769 don't systematically reproduce this one, which is more random,
  but I can't tell for example whether or not having used Show Desktop is
  a necessary condition to observe this issue.
  
  ProblemType: Bug
  DistroRelease: Ubuntu 13.04
  Package: unity 7.0.0daily13.06.19~13.04-0ubuntu1
  ProcVersionSignature: Ubuntu 3.8.0-30.44-generic 3.8.13.6
  Uname: Linux 3.8.0-30-generic i686
  NonfreeKernelModules: nvidia
  ApportVersion: 2.9.2-0ubuntu8.4
  Architecture: i386
  CompizPlugins: [core,composite,opengl,decor,vpswitch,mousepoll,compiztoolbox,snap,commands,place,resize,session,regex,grid,wall,move,gnomecompat,imgpng,animation,fade,unitymtgrabhandles,workarounds,scale,expo,ezoom,unityshell]
  Date: Sun Sep 15 22:25:37 2013
  InstallationDate: Installed on 2010-06-23 (1180 days ago)
  InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
  MarkForUpload: True
  ProcEnviron:
-  TERM=xterm
-  PATH=(custom, no user)
-  XDG_RUNTIME_DIR=<set>
-  LANG=en_US.UTF-8
-  SHELL=/bin/bash
+  TERM=xterm
+  PATH=(custom, no user)
+  XDG_RUNTIME_DIR=<set>
+  LANG=en_US.UTF-8
+  SHELL=/bin/bash
  SourcePackage: unity
  UpgradeStatus: Upgraded to raring on 2013-08-10 (36 days ago)

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https://bugs.launchpad.net/bugs/1225774

Title:
  Launcher randomly stops showing up when you move the mouse to the left
  of the screen. Randomly clicking on some window's title bar almost
  always fixes it

Status in “unity” package in Ubuntu:
  New

Bug description:
  At random times, and very, very often (I haven't found out what
  triggers it), the Launcher stops showing up. That is, you move the
  mouse all the way to the left of the screen and the Launcher doesn't
  show up. You retry and retry but it won't show up.

  Clicking randomly on some window's titlebar and retrying usually fixes
  it. Most of the times, clicking on some other part of a window other
  than the title bar won't do the trick. I'm not sure this is always the
  case, but I'm under the impression it's necessary to click on a
  window's titlebar, or at least that is far far more likely to do the
  trick.

  This looks to me unrelated to #1225769, but I'm not sure; there may be
  some nontrivial relation. What I can say is that the steps described
  in 1225769 don't systematically reproduce this one, which is more
  random, but I can't tell for example whether or not having used Show
  Desktop is a necessary condition to observe this issue.

  ProblemType: Bug
  DistroRelease: Ubuntu 13.04
  Package: unity 7.0.0daily13.06.19~13.04-0ubuntu1
  ProcVersionSignature: Ubuntu 3.8.0-30.44-generic 3.8.13.6
  Uname: Linux 3.8.0-30-generic i686
  NonfreeKernelModules: nvidia
  ApportVersion: 2.9.2-0ubuntu8.4
  Architecture: i386
  CompizPlugins: [core,composite,opengl,decor,vpswitch,mousepoll,compiztoolbox,snap,commands,place,resize,session,regex,grid,wall,move,gnomecompat,imgpng,animation,fade,unitymtgrabhandles,workarounds,scale,expo,ezoom,unityshell]
  Date: Sun Sep 15 22:25:37 2013
  InstallationDate: Installed on 2010-06-23 (1180 days ago)
  InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
  MarkForUpload: True
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: unity
  UpgradeStatus: Upgraded to raring on 2013-08-10 (36 days ago)

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