[regession] Multi-monitor: Mousepointer hangs when passing between monitors, although no Launcher is there.

[IRIE Shinsuke]

This is exactly same as LP #1120223 which has been closed by mistake:

[How to reproduce]

1. Have a dual screen left-right config, with the Launcher just visible on your main (left) monitor
2. Make your mousepointer move between first and second display multiple times

[What you would expect]

You should feel no barrier when doing that, as there is no Launcher on the right screen.

[What actually happens]

The mousepointer sometimes hangs, when moving between those screens (both directions are
affected, left->right && right->left).

Note: It always hangs once you stay longer than 1 second on each monitor.
      It also starts blocking after one second if you move between your screens rapidly.

Workaround (without hacking the code):
Edit unityshell.xml (best copy it to ~/.compiz-1/metadata) and change "edge_passed_disabled_ms" <default> and <max> settings to 900000000, which means your
pointer will hang once in 250 hours/once every 10 days after the barrier has been broken.

[PS Jenkins bot (ps-jenkins)]

Fix committed into lp:unity at revision None, scheduled for release in unity, milestone backlog

[Launchpad Janitor (janitor)]

This bug was fixed in the package unity - 7.0.0daily13.04.05.2-0ubuntu1

---------------
unity (7.0.0daily13.04.05.2-0ubuntu1) raring; urgency=low

  * Revert r3266 "Don't close the dash when switching from the command lens
    to the home lens.", it's breaking dash closing for individual lens,
    which also result in a serie of failing tests (lp: #1164915)

  [ Stephen M. Webb ]
  * Bumped released version to 7.0.0

  [ Brandon Schaefer ]
  * Invalid Dnd is not being ingored in the launcher. (LP: #1163473)
  * Dash Overlay scrollbars should allow dragging, until the scrollbars
    themselfs hit the top/end of the track. (LP: #1163616)
  * [regession] Multi-monitor: Mousepointer hangs when passing between
    monitors, although no Launcher is there. (LP: #1161726)
  * The dash closes when trying to switch from Command lens to home lens
    (LP: #1108956)

  [ Chris Townsend ]
  * Need to tweak the icon glow for urgent apps (LP: #1163944)

  [ Andrea Azzarone ]
  * Window management - grab icons appear when using touchpad (LP:
    #1026712)

  [ Marco Trevisan (Treviño) ]
  * compiz crashed with SIGSEGV in
    sigc::internal::slot_call0<unity::launcher::VolumeImp::Impl::Impl()
    (LP: #1161916)

  [ Ubuntu daily release ]
  * Automatic snapshot from revision 3279
 -- Ubuntu daily release <email address hidden> Fri, 05 Apr 2013 14:51:53 +0000

[hrjet (hrjet9)]

I am on Unity 7.0.0daily13.04.18~13.04-0ubuntu1 and still bitten by this.

[MC Return (mc-return)]

This is so nasty and still not fixed. Are no Unity devs using multiscreen ? How can this be unnoticed such a long time ?

[MC Return (mc-return)]

I have re-opened bug #1120223.

[IRIE Shinsuke (irie)]

The problem still happens to me...

[MC Return (mc-return)]

@irie: I've posted a workaround in the descriptions of the bug reports. ;)