A big space between some icons on unity launcher

[Paweł Bylica]

Sometimes an empty space that can fit an application icon appears on unity launcher. Icons of new launched applications are places after it. It also moves up if earlier launched applications are closed.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: unity 5.10.0-0ubuntu5
ProcVersionSignature: Ubuntu 3.2.0-23.36-generic 3.2.14
Uname: Linux 3.2.0-23-generic x86_64
.tmp.unity.support.test.0:

ApportVersion: 2.0.1-0ubuntu4
Architecture: amd64
CompizPlugins: [core,composite,opengl,compiztoolbox,decor,vpswitch,snap,mousepoll,resize,place,move,wall,grid,regex,imgpng,session,gnomecompat,animation,fade,unitymtgrabhandles,workarounds,scale,expo,ezoom,unityshell]
CompositorRunning: compiz
CurrentDmesg:
 Error: command ['sh', '-c', 'dmesg | comm -13 --nocheck-order /var/log/dmesg -'] failed with exit code 1: comm: /var/log/dmesg: Permission denied
 dmesg: write failed: Broken pipe
Date: Tue Apr 17 23:14:14 2012
DistUpgraded: 2012-01-11 17:22:57,989 DEBUG enabling apt cron job
DistroCodename: precise
DistroVariant: ubuntu
GraphicsCard:
 Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0116] (rev 09) (prog-if 00 [VGA controller])
   Subsystem: ASUSTeK Computer Inc. Device [1043:15f2]
 NVIDIA Corporation GF108 [GeForce GT 540M] [10de:0df4] (rev ff) (prog-if ff)
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
MachineType: ASUSTeK Computer Inc. K53SV
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-23-generic root=UUID=db3237ad-d13f-4ab9-afa0-83f876202c85 ro quiet splash pcie_aspm=force i915.i915_enable_rc6=1 vt.handoff=7
SourcePackage: unity
UpgradeStatus: Upgraded to precise on 2012-01-11 (97 days ago)
XorgConf:
 Section "Device"
  Identifier "Default Device"
  Option "NoLogo" "True"
 EndSection
dmi.bios.date: 11/11/2011
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: K53SV.320
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: K53SV
dmi.board.vendor: ASUSTeK Computer Inc.
dmi.board.version: 1.0
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 9
dmi.chassis.vendor: ASUSTeK Computer Inc.
dmi.chassis.version: 1.0
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrK53SV.320:bd11/11/2011:svnASUSTeKComputerInc.:pnK53SV:pvr1.0:rvnASUSTeKComputerInc.:rnK53SV:rvr1.0:cvnASUSTeKComputerInc.:ct9:cvr1.0:
dmi.product.name: K53SV
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK Computer Inc.
version.compiz: compiz 1:0.9.7.6-0ubuntu1
version.ia32-libs: ia32-libs 20090808ubuntu35
version.libdrm2: libdrm2 2.4.32-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.2-0ubuntu3
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.2-0ubuntu3
version.xserver-xorg-core: xserver-xorg-core 2:1.11.4-0ubuntu10
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.0-0ubuntu1
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.99~git20111219.aacbd629-0ubuntu2
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.17.0-1ubuntu4
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20111201+b5534a1-1build2

[Sebastien Bacher (seb128)]

Thank you for your bug report, do you run an application or add one to the launcher when that happens? What happens if you right click on that empty space?

[Sebastien Bacher (seb128)]

seems similar to bug #983048

[Paweł Bylica (chfast)]

I did not spot the exact moment when it happened but I did not add anything to launcher.

On the right click there was a context menu: the place for application name was empty and there was 2 default options for running application - "Unlock from Launcher" and "Quit". Did you know that screenshot cannot be made when a quick list is open?

Bug #983048 can be a duplicate.