Multi-monitor: Mousepointer hangs when passing between monitors, although no Launcher is there (regression)

[MC Return]

[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.

[MC Return (mc-return)]

I gotta reopen this bug report.
It was fixed (for a short time), but now this bug seems to be back again...

[MC Return (mc-return)]

Might be that http://bazaar.launchpad.net/~unity-team/unity/trunk/revision/3157 broke it again, but I am not 100% sure about this...

[Launchpad Janitor (janitor)]

This bug was fixed in the package unity - 6.12.0daily13.02.19.1-0ubuntu1

---------------
unity (6.12.0daily13.02.19.1-0ubuntu1) raring; urgency=low

  [ Brandon Schaefer ]
  * Multi-monitor: Mousepointer hangs when passing between monitors,
    although no Launcher is there (regression) (LP: #1120223)
  * Sticky edges should only use horizontal mouse movement (LP: #982543)

  [ Marco Trevisan (Treviño) ]
  * Launcher - Workspace switcher should not be in the Launcher by
    default (LP: #868423)
  * [regression] Unlocking a running application, removes it from the
    Launcher (LP: #1122311)
  * Launcher, Workspaces - dragging and dropping the workspaces icon on
    to the trash should switch Workspaces off (LP: #1118271)

  [ Chris Townsend ]
  * webapp: alt-tab gets "stucked" on the browser rather than going to
    the next entry (LP: #1070715)

  [ Nick Dedekind ]
  * Dash - the "Decade" and "Size" dash filter category widgets are
    broken (LP: #841899)
  * Dash Places group is shining on quick mouse over (LP: #1119487)

  [ Lukas Vacek ]
  * Show window list when right clicking an icon in launcher - enables
    quick window switching (LP: #1107866)

  [ Marco Trevisan (Treviño) <[e-mail]>, Lukas Vacek ]
  * Show window list when right clicking an icon in launcher - enables
    quick window switching (LP: #1107866)

  [ Andrea Azzarone ]
  * unity launcher vanishes when switching to mirrored displays (LP:
    #991637)
  * Opening an app with super+num shorcut doesn't give focus to the app
    (LP: #1125331)
  * Alt+` and detail switcher broken after revision 3153 (LP: #1129372)

  [ Sam Spilsbury ]
  * Unity unnecessarily clears the ShapeBounding shape of windows on
    minimize (LP: #1091600)
  * Can't access minimized window after Unity restarts (LP: #851964)

  [ Automatic PS uploader ]
  * Automatic snapshot from revision 3163
 -- Automatic PS uploader <email address hidden> Tue, 19 Feb 2013 14:26:14 +0000

[IRIE Shinsuke (irie)]

The problem still happens to me...

 Please reopen.

Unity 6.12.0daily13.03.20-0ubuntu1
Ubuntu 13.04
using three monitors

[IRIE Shinsuke (irie)]

Brandon, I don't understand why you closed this though MC-Return reported the bug has been back again.

I indeed experienced the problem, so Unity is useless on Raring with multi-monitor.

[IRIE Shinsuke (irie)]

Submitted this as a new bug #1161726.

[Brandon Schaefer (brandontschaefer)]

@IRIE

Sorry, I missed MCs' comment. Thank you for opening a new bug, and Ill start looking into this!

[MC Return (mc-return)]

As the new bug #1161726 says (once again) that this problem is fixed and I cannot reopen the other bug report I am reopening this original report.

[Brandon Schaefer (brandontschaefer)]

This should be fixed once we move to 1.14 xserver, which if anyone wants to test out here is a ppa with all the changes included:

https://launchpad.net/~canonical-x/+archive/x-staging

Also the branch that 'should' fix this :).

https://code.launchpad.net/~brandontschaefer/unity/move-pointer-barrier-to-xi-1.6.99.1

[MC Return (mc-return)]

Brandon, it is good to know this bug is being worked on as it is really annoying. +1 for that.

Will there be a fix for Raring also as this regressed there ?

[Stephen M. Webb (bregma)]

>
> Will there be a fix for Raring also as this regressed there ?

As far as I know there are no plans to backport the newer version of the x.org server to Ubuntu 13.04.

[MC Return (mc-return)]

"As far as I know there are no plans to backport the newer version of the x.org server to Ubuntu 13.04."

Then the correct solution would be to revert the commit causing this bad regression or fix it in some other way for Raring.

Or - another idea -> simply wait until Raring is not supported anymore and then say "Won't fix".

[IRIE Shinsuke (irie)]

The problem still happens to me also on Ubuntu 13.10...

[themusicgod1 (themusicgod1)]

Is it possible this has regressed again? 14.04 here