icon gets stuck on screen if dragged from the launcher over spread view

Bug #748900 reported by moma on 2011-04-03
10
This bug affects 2 people
Affects Status Importance Assigned to Milestone
Unity
Invalid
Undecided
Unassigned
unity (Ubuntu)
Medium
Unassigned

Bug Description

Binary package hint: unity

Unity-desktop freezes when I do the following test-case to verify NVidia's graphics card.

http://testcases.qa.ubuntu.com/Hardware/X/GraphicsVideoPerformance#Running%20Autopilot
See "Compiz Scale", Case ID: gpr-002.

The test case is as follows:
* I have two (2) maximized Nautilus windows on the screen.
* Then I click the Filemanager/Nautilus button (icon) once again. It activates the scale plugin. See the attached pictures.
* I try to move a button/icon while the scale window is active.
* The buttons or Unity (or Compiz?) freezes.
* I have to type:
  compiz --replace &

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: unity 3.8.2-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.38-7.39-generic 2.6.38
Uname: Linux 2.6.38-7-generic x86_64
NonfreeKernelModules: nvidia
Architecture: amd64
CompizPlugins: [core,bailer,detection,composite,opengl,decor,mousepoll,vpswitch,regex,animation,snap,expo,move,compiztoolbox,place,grid,imgpng,gnomecompat,wall,ezoom,workarounds,staticswitcher,resize,fade,unitymtgrabhandles,scale,session,unityshell]
Date: Sun Apr 3 09:45:47 2011
DistroCodename: natty
DistroVariant: ubuntu
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Beta amd64 (20110402)
InstallationMedia_: Ubuntu 11.04 "Natty Narwhal" - Beta amd64 (20110402)
InstallationMedia__: Ubuntu 11.04 "Natty Narwhal" - Beta amd64 (20110402)
ProcEnviron:
 LANGUAGE=en_US:en
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature_: Ubuntu 2.6.38-7.39-generic 2.6.38
ProcVersionSignature__: Ubuntu 2.6.38-7.39-generic 2.6.38
SourcePackage: unity
UpgradeStatus: No upgrade log present (probably fresh install)
version.libgl1-mesa-glx: libgl1-mesa-glx 7.10.1-0ubuntu3
version.xserver-xorg: xserver-xorg 1:7.6+4ubuntu1

moma (osmoma) wrote :
moma (osmoma) wrote :
Omer Akram (om26er) wrote :

I tried this on intel, in my case the desktop does not freeze though the icon is stuck on the screen, everything else works fine. also you can reset the icon to its state by clicking on the blank space which is created after the icon is dragged from the launcher. Can you please confirm if that the acutal problem?

Changed in unity (Ubuntu):
status: New → Incomplete
Changed in unity:
status: New → Incomplete
moma (osmoma) wrote :

You are right.
The icon is stuck on the screen.
In most cases the icon returns to its positions if I click on the empty space.

But in some cases, the buttons seems to be totally (not frozen) but hollow and transparent. All mouse-clicks pass through to the window beneath. However the desktop and its windows and all keystrokes work fine and normally.

See the attached picture. I have marked the text by dragging along the icons, like the buttons weren't there.

BTW: When I grab and move a button/icon rather quickly up & down, the harddrive is spinning heavily and CPU usage for compiz pops up to 25% (ref: top). Harddrive keeps spinning a few seconds after the icon has landed. But this is not a real life problem.

Omer Akram (om26er) on 2011-04-04
summary: - Unity-desktop freezes when moving buttons (during scale plugin)
+ icon gets stuck on screen if dragged from the launcher over spread view
Changed in unity (Ubuntu):
importance: Undecided → Medium
status: Incomplete → Confirmed
Changed in unity:
status: Incomplete → Confirmed
Omer Akram (om26er) wrote :

this issue have been fixed in Oneiric there was a very similar bug closed more than a month ago.

Changed in unity:
status: Confirmed → Invalid
Changed in unity (Ubuntu):
status: Confirmed → Invalid
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