[dash] Exiting the dash causes launcher and panel to disappear

Just confirmed that, on the same machine, Unity runs Audacity OK. Logged out, logged back into Unity and ran Audacity fine.

(The reason I'm running 2D at all BTW, is that I have other problems with the desktop locking up and white windows but it managed to hold itself together long enough to run Audacity).

Have the same problem running Synaptic. Consistently crashing the desktop.

I've just noticed that it may not be a crash and more of a repainting issue. If I hit Super-S a few times the launcher and top "panel" come back again.

Updated the bug title to reflect this.

Richard, could you please attach to this bug report the file ~/.xsession-errors ?

Logged out and back in. All I started was a terminal to follow the output of .xsession-errors.

I then hit the Super key to bring up the dash (had to hit it twice) and launched Audacity. Launcher and top panel/global menu disappeared when Audacity window appeared. No window decoration on Audacity window. Hit Super-S a couple of times and the launcher and panel came back.

Closed Audacity and made a copy of .xsession-errors (attached).

OK, I have a better pattern of failure now:

I lose launcher and panel in these cases:

1. Hit Super to open the Dash and escape to cancel
2. Hit Super to open the Dash and click on an active window without entering text
3. Hit Super to open the Dash and run an application that opens full-screen (Audacity/Synaptic in my case)
4. Hit Super to open the Dash, click on a lens, e.g. applications, then escape to cancel

It behaves correctly in these cases:

1. Hit Super to open the Dash and Super again to cancel
2. Hit Super to open the Dash and click on the desktop to cancel

It recovers if I Hit Super-S a couple of times.

I confirm this is due to the patch introduced to fix bug 750753 .
The fix wasn't tested with the metacity compositor running, which displays this issue.
Regular metacity doesn't have this problem, so as a workaround you can disable the compositor until a proper fix is released.

This bug was fixed in the package unity-2d - 3.8.4-0ubuntu1

---------------
unity-2d (3.8.4-0ubuntu1) natty; urgency=low

  * New upstream bugfix release
    * (LP: #764690) [launcher] launcher won't fully paint, corrupted view
    * (LP: #740387) graphical corruption with multiple drivers and classic desktop
    * (LP: #753269) [spread] crash when sending applications to other workspaces
    * (LP: #755599) [dash] Exiting the dash causes launcher and panel to disappear
    * (LP: #760522) [launcher] LibreOffice applications that are not favorite are all
      matched with LibreOffice Impress
    * (LP: #763116) [launcher] Launcher doesn’t autohide after an application
      requested attention
    * (LP: #684471) [dash] Default terminal PATH when opening it from the Applications
      menu is / instead of $HOME
    * (LP: #739454) [launcher] nautilus windows are not matched with the home icon
    * (LP: #741160) [launcher] Launching nautilus changes the favorite’s icon
    * (LP: #744970) [launcher] item calling for attention needs to always be visible
    * (LP: #751450) [launcher] icon for workspace switcher incorrect (back to old pink
      one)
    * (LP: #753382) [launcher] Synaptic favorite turns into software-properties
    * (LP: #759189) [dash] no singular/plural option for "See %1 more results"
    * (LP: #759776) [launcher] Looses track of open windows for synaptic and empathy
    * (LP: #728927) Unity Min,Max,Close buttons not available in Libreoffice
    * (LP: #759191) [launcher] most keyboard shortcuts don't activate properly the
      first time/ever
    * (LP: #760001) [launcher] Super key shouldn't activate dash while spread is
      (LP: #running
    * (LP: #760233) [launcher] critical warning from wnck
    * (LP: #761661) [spread] New WindowInfo objects should not be created while spread
      is inactive
    * (LP: #721121) UIFe: Icon in Launcher should be home folder icon
 -- Oliver Grawert <email address hidden> Tue, 19 Apr 2011 14:23:17 +0200