Unity Launcher does not reveal itself when hidden

[Rainer Rohde]

When setting the Unity Launcher to autohide, it no longer reveals itself using the mouse against the reveal location (left side in my case) like it did a few days ago. Even with the reveal sensitivity set to High it stays hidden. The only way to have access to the Launcher is to use the Super Key.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: unity 5.4.0-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-16.25-generic 3.2.6
Uname: Linux 3.2.0-16-generic x86_64
NonfreeKernelModules: nvidia wl
ApportVersion: 1.91-0ubuntu1
Architecture: amd64
CompizPlugins: [core,composite,opengl,decor,mousepoll,vpswitch,regex,animation,snap,expo,move,compiztoolbox,place,grid,imgpng,gnomecompat,wall,ezoom,workarounds,resize,fade,unitymtgrabhandles,scale,session,unityshell]
Date: Sat Feb 18 15:12:00 2012
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
ProcEnviron:
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: unity
UpgradeStatus: Upgraded to precise on 2012-01-31 (18 days ago)

[nuttzo33 (slucas1979)]

I'm getting this at the moment, i can see the shadow of the launcher briefly pop out but launcher will not reveal.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[nuttzo33 (slucas1979)]

I can get the launcher to reveal sometimes but it is difficult to do.Something may have changed in a recent update because this was working flawlessly a couple of days ago.

[nuttzo33 (slucas1979)]

As a temporary workaround on my pc I have changed the laucher reveal pressure from 20 to 3 in the unity plugin options in ccsm .

[Doug McMahon (mc3man)]

What seems to have broken is the push action, so as mentioned lowering pressure & just hitting the edge is the best way currently

[nuttzo33 (slucas1979)]

I have reinstalled with the daily build from the 18th and updated and the launcher is back to normal.

[Petko Ditchev (pditchev)]

I reinstalled (with the daily) 15 mins ago and the problem persists .

[vmc (vmclark)]

With "nvidia 295.20", I have the same issue, and it takes many times pushing against the left wall before the launcher appears.

With "nvidia 295.10" installed, I have no problem with the launcher appearing with slights push.

[Doug McMahon (mc3man)]

Can confirm that with nvidia-current_290.10-0ubuntu2 the 'push' works, with 295.20-0ubuntu1 it doesn't

[Edward Donovan (edward.donovan)]

A little more on this being nvidia-specifc:

My machine with Nvidia card and Nvidia's drivers has this bug. It doesn't happen under Unity 2-D. And not under the nouveau driver -- but that forces Unity 2-D, anyway.

A machine with a Radeon card and Xorg radeon driver, doesn't show the bug.

All this is under Unity 5.4. I also tested downgrading to Unity 5.2.0-0ubuntu5, under the nvidia 295.20 drivers. That appeared to show the bug, too. I didn't get to test that at length, but it may be that the bug didn't arrive just with Unity 5.4.

[nuttzo33 (slucas1979)]

I am also confident that this is a nvidia proprietary specific issue. I also have graphical corruption when logging in and switching users but they don't cause any major issues because they fade away after aoiut 5-6 seconds.

[kyleabaker (kyleabaker)]

I'm using a dual monitor setup and can confirm that launcher absolutely will not display (via cursor) on the left monitor, however, it displays as expected on the right monitor.

[Edward Donovan (edward.donovan)]

Things are working for me, again, after this update to the X.org server packages:

xorg-server (2:1.11.4-0ubuntu4) precise; urgency=low

  * debian/patches/500_pointer_barrier_thresholds.diff:
    - Make the velocity calculation more robust on screen edges. Fixes reveal
      behaviour on nVidia 295.20 driver, which now clamps the pointer to the
      visible screen area. (LP: #937792)

 -- Christopher James Halse Rogers <email address hidden> Tue, 21 Feb 2012 17:04:41 +1100

It looks like that version of the bug got reported and fixed, before we had a chance to see that it was a dupe. :-) I won't try marking them dupes, now, in case they're not completely so.

Lets' see if the update above helps everyone else. Hope so.

[Rainer Rohde (rainer-rohde)]

It does seem to work for me again, too. Good news! :)

[Armando Beneduce (armando-unina)]

I just found this bug on Ubuntu 12.04 Beta 1.
It's not related to Nvidia video cards: my video controller is an Intel Corporation Mobile GM965/GL960 Integrated Graphics one (as from lspci)...

[AO (aofrl10n)]

II experience this bug in Precise amd64 fully updated, but only when using nvidia-current, whether the 295.40 or the latest 304.51.