Ubuntu 12.04 unstable: Left-side launch panel has stopped auto-hiding

[Suave]

Hardware profile:
http://suaserve.com/webdocs/hardwareprofile.html

Release:
Precise 12.04

Package (I believe):
unity-2d-launcher:
  Installed: 5.2.1-0ubuntu2
  Candidate: 5.2.1-0ubuntu2
  Version table:
 *** 5.2.1-0ubuntu2 0
        500 http://gb.archive.ubuntu.com/ubuntu/ precise/main i386 Packages
        100 /var/lib/dpkg/status

Apologies if I have selected the incorrect package as I am not 100% sure whether the panel is run under unity-2d-launcher; the attached screenshot will hopefully clear it up if not!

- 12.04 has previously loaded with the left-hand panel displayed until an application window is loaded, at which point it would auto-hide
- Today this stopped happening and the panel remained permanently visible in the foreground of active windows (see screenshot); reboot did not resolve
- workaround was to install compizconfig-settings-manager and change the display setting under Desktop > Ubuntu Unity Plugin to Autohide
- Since uninstalling compizconfig-settings-manager again, the panel is sometimes autohiding, sometimes not; any suggestions on logs/other info I could grab to get more detail on what's going on would be great!

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: unity 5.2.0-0ubuntu2
ProcVersionSignature: Ubuntu 3.2.0-14.23-generic-pae 3.2.3
Uname: Linux 3.2.0-14-generic-pae i686
.tmp.unity.support.test.0:

ApportVersion: 1.91-0ubuntu1
Architecture: i386
CompizPlugins: [core,bailer,detection,composite,opengl,decor,snap,regex,grid,mousepoll,place,resize,compiztoolbox,vpswitch,gnomecompat,imgpng,move,animation,session,workarounds,wall,expo,ezoom,fade,scale,unityshell]
CompositorRunning: compiz
Date: Wed Feb 8 22:06:47 2012
DistUpgraded: Log time: 2012-01-27 00:41:37.173425
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: Acer Incorporated [ALI] Device [1025:054f]
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha i386 (20111129.1)
MachineType: Acer Aspire 4830T
ProcEnviron:
 LANGUAGE=en_GB:en
 PATH=(custom, no user)
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-14-generic-pae root=UUID=b490c36e-a9fc-4573-98f4-6bd9f01a1c61 ro quiet splash vt.handoff=7
SourcePackage: unity
UpgradeStatus: Upgraded to precise on 2012-01-27 (12 days ago)
dmi.bios.date: 06/08/2011
dmi.bios.vendor: Acer
dmi.bios.version: V1.05
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: JM40_HR
dmi.board.vendor: Acer
dmi.board.version: Base Board Version
dmi.chassis.type: 10
dmi.chassis.vendor: Acer
dmi.chassis.version: V1.05
dmi.modalias: dmi:bvnAcer:bvrV1.05:bd06/08/2011:svnAcer:pnAspire4830T:pvrV1.05:rvnAcer:rnJM40_HR:rvrBaseBoardVersion:cvnAcer:ct10:cvrV1.05:
dmi.product.name: Aspire 4830T
dmi.product.version: V1.05
dmi.sys.vendor: Acer
version.compiz: compiz 1:0.9.6+bzr20110929-0ubuntu8
version.libdrm2: libdrm2 2.4.30-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 8.0~rc2-0ubuntu4
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 8.0~rc2-0ubuntu4
version.xserver-xorg-core: xserver-xorg-core 2:1.11.3-0ubuntu10
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.6.99.901-1ubuntu3
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 2:2.17.0-1ubuntu3
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20111201+b5534a1-1build2

[Omer Akram (om26er)]

Can you login to guest session and test there if its still an issue. The thing that you should now is that it is the new behavior for the launcher to not hide by default./

[Suave (suave-swerve)]

Am now in Guest session and here it is not intermittent but consistently hiding active windows (I have not attempted workaround via Compiz Config Manager here). Is the default meant to be to shift/resize active windows to keep both panel and window fully visible, or to let the panel sit on top at all times? The latter seems somewhat silly if you ask me. :) Screenshot attached of what I'm seeing when in Terminal!

[dc (darkcharl)]

I believe this might be a duplicate of #944228. The description there contains valuable input on how to reproduce the issue. I was able to reproduce it as follows:

- open up multiple gnome terminals
- tap the icon twice, the expose effect will be triggered
- after the expose effect, the panel won't hide anymore

unity-2d:
  Installed: 5.8.0-0ubuntu1
  Candidate: 5.8.0-0ubuntu1
  Version table:
 *** 5.8.0-0ubuntu1 0
        500 http://us.archive.ubuntu.com/ubuntu/ precise/main amd64 Packages
        100 /var/lib/dpkg/status

unity-2d-panel:
  Installed: 5.8.0-0ubuntu1
  Candidate: 5.8.0-0ubuntu1
  Version table:
 *** 5.8.0-0ubuntu1 0
        500 http://us.archive.ubuntu.com/ubuntu/ precise/main amd64 Packages
        100 /var/lib/dpkg/status

---

unity:
  Installed: 5.8.0-0ubuntu2
  Candidate: 5.8.0-0ubuntu2
  Version table:
 *** 5.8.0-0ubuntu2 0
        500 http://us.archive.ubuntu.com/ubuntu/ precise/main amd64 Packages
        100 /var/lib/dpkg/status

[dc (darkcharl)]

An addition that the package referenced in this issue is actually unity-2d-panel. I am going to disable autostart in /usr/share/applications/unity-2d-shell.desktop to manually debug.

[dc (darkcharl)]

Restarting the process seems to get rid of the issue somehow. I wonder if this could this be some type of initialization or initial condition type of an issue.

Can you see if you still experience this issue after invoking ``pkill unity-2d-shell'' from the terminal? (don't disable autostart in unity-2d-shell.desktop)

[Omer Akram (om26er)]

Thanks for the bug report. Is that still an issue for you Ubuntu 12.04 with all updates applied? Can you please test that and let us know?

[Launchpad Janitor (janitor)]

[Expired for Unity because there has been no activity for 60 days.]

[Launchpad Janitor (janitor)]

[Expired for unity (Ubuntu) because there has been no activity for 60 days.]