Unity Grid is broken for multi-monitor setups

Bug Description

Binary package hint: unity

On multi-monitor setups, Unity Grid only works on one half of the right- and leftmost monitors. It should detect the borders between the monitors and expand windows accordingly.

Ctrl+Alt+NumPad already adheres to multi-monitor setups, so it is not impossible.

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: unity 3.2.16-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.37-12.26-generic 2.6.37
Uname: Linux 2.6.37-12-generic x86_64
NonfreeKernelModules: nvidia
Architecture: amd64
CompizPlugins: [core,bailer,detection,composite,opengl,compiztoolbox,decor,imgjpeg,text,move,regex,place,snap,mousepoll,grid,imgsvg,gnomecompat,imgpng,vpswitch,wall,resize,session,animation,workarounds,expo,ezoom,staticswitcher,fade,scale,unityshell]
Date: Fri Jan 28 13:48:57 2011
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha amd64 (20110127)
ProcEnviron:
LANGUAGE=en_DK:en
LANG=en_DK.UTF-8
LC_MESSAGES=en_DK.utf8
SHELL=/bin/bash
SourcePackage: unity

Still not fixed in Unity 3.4.6.

This bug was fixed in the package compiz - 1:0.9.4git20110322-0ubuntu1

---------------
compiz (1:0.9.4git20110322-0ubuntu1) natty; urgency=low

* New upstream bug fix snapshot:
- Application windows can sometimes fail to display and will
mask regions of the screen (LP: #709461)
- Compiz switcher Alt-Tab order is not predictable - should
maintain LIFO ordering in application switcher (LP: #175874)
- after compiz crashed, gnome-panel isn't mapped again (LP: #711378)
- invisible windows border problem (LP: #710271)
- Compiz thinks you are clicking in an edge window when you
are not (LP: #734250)
- Add test case for invisible window regressions (LP: #736876)
- often can't alt-click-dnd to move the focussed dialog (LP: #711911)
- When windows open for the first time they should not hide (LP: #723878)
- Unity Grid is broken for multi-monitor setups (LP: #709221)
- Pixmaps trashed during animations when window is unmapped (LP: #733331)
- Windows have blank decorations when rapidly closing and
reopening (LP: #733328)
- Unity is not restored on unity/compiz crash: compiz doesn't register
properly with gnome-session (LP: #716462)
* remove the patch taken from upstream
* refresh u-w-d patch with latest upstream work
* debian/compiz-core.install:
- image move to the final destination
* debian/patches/100_bump_core.h.patch:
- bump for ABI breakage
* debian/compiz-decorator:
- use gtk-window-decorator and not unity-window-decorator as it's really
crashy for now (will probably redo an upload tomorrow with a fixed
decorator)
-- Didier Roche <email address hidden> 2011年3月22日 21:45:34 +0100

It still doesn't work for me. I use the proprietary nVidia drivers. Just to make it clear, I've recorded a video. In the last part of the video, you see me using the ctrl+alt+NumPad shortcuts to adjust the window size.

This bug was fixed in the package unity - 3.8.2-0ubuntu1

---------------
unity (3.8.2-0ubuntu1) natty; urgency=low

* New upstream release.
- compiz crashed with SIGSEGV in std::_List_node_base::_M_hook()
(LP: #711916)
- New window tracking system breaks in the case where windows try to
restack relative to destroyed windows that were never mapped
(LP: #723014)
- does not display icons until hovered (LP: #726033)
- Unity Launcher has black spaces where icons should be (LP: #729353)
- compiz crashed with SIGSEGV in sigc::internal::signal_emit0<void,
sigc::nil>::emit() (LP: #729715)
- compiz crashed with SIGSEGV in SimpleLauncherIcon::OnIconThemeChanged()
(LP: #741652)
- compiz crashed with SIGSEGV in free() (LP: #738864)
- compiz crashed with SIGSEGV in g_closure_invoke() (LP: #741674)
- compiz crashed with SIGSEGV in free() (LP: #742300)
- Unity can't get touch the touch initialization signals from GEIS
(LP: #742555)
- Windows that reparent away from the root before they are mapped can
cause other windows to become invisible (and compiz to crash)
(LP: #743011)
- compiz crashed with SIGSEGV in gdk_cairo_set_source_pixbuf()
(LP: #744231)
- [dash] Keyboard navigation not implemented as specified (LP: #608132)
- xterms broken in unity (LP: #692463)
- Unity opens application menu on Alt+F10 shortcut (LP: #722674)
- First four items in Dash begin "Find" "Find" "Find" "Find" (LP: #729002)
- Increase the size of the top left Launcher reveal area from 1px to a
slightly larger triangle that comes out of the top left corner
(LP: #736034)
- Add a test case for invisible windows regressions (LP: #736876)
- Re-sync with xquerytree to avoid stacking order issues (LP: #740465)
- Keyboard navigation: quicklist not opening for Trash launcher item
(LP: #741793)
- Wrong window moves (LP: #741656)
- compiz crashed with SIGSEGV in
SimpleLauncherIcon::ActivateLauncherIcon() (LP: #742110)
- Combo in the search bar did not disappear after the places was closed
(LP: #742712)
- Expo doesn't quit reliably when using keynav or shortcut (LP: #744196)
- Make the BFB icon turn blue when an application goes urgent
(LP: #744973)
- Launcher - increase "launcher reveal %" for 'Fade and slide' launcher
reveal transition to 65% (LP: #745602)
- Arrows do not fade out with rest of launcher durring DND (LP: #746811)
- Don't create windows over the launcher (LP: #688816)
- Launcher - Indicate which application is currently focused with a
glowing Launcher icon (LP: #676604)
- Unity Grid is broken for multi-monitor setups (LP: #709221)
- dynamic quicklists are not working (LP: #729074)
- When windows open for the first time they should not hide the launcher
(LP: #723878)
- it is still possible to quit unity from the panel (LP: #733725)
- Selection does not fit small icons in Unity Dash (LP: #735746)
- Unmounting media gives no error when failed (LP: #737633)
- ATI/fglrx workaround patch (LP: #740298)
- "Files & Folders" tooltip say...

This bug was fixed in the package compiz - 1:0.9.4+bzr20110406-0ubuntu1

---------------
compiz (1:0.9.4+bzr20110406-0ubuntu1) natty; urgency=low

* new upstream bzr tarball:
- display/size problems with xterm (LP: #748137)
- fix crashes on tcl/tk applications (LP: #741074, #747439)
- fix grab on compose keys (LP: #747323)
- resync stack at regular interval to avoid invisible windows
(LP: #723014, #743011, #736876, #740465, #684590)
- fix weird order in alt + tab (LP: #175874)
- fix crash in gitk (LP: #743011, #741074)
- avoid compiz detection by fglrx driver (LP: #740298)
- Wrong window moves (LP: #741656, #743634)
- Unity Grid is broken for multi-monitor setups (LP: #709221)
- Feature Freeze Exception: Animation for Grid Plugin Previews (LP: #744104)
- unity-window-decorator crashed with SIGSEGV in gdk_window_get_events()
(LP: #725284)
- fix xterm (LP: #692463)
- start the decorator on a secondary screen (LP: #730495)
* debian/patches/090_git_fix_new_invisible_windows.patch,
debian/patches/100_bump_core.h.patch:
- upstreamed
* debian/patches/01_unity_window_decorator.patch
debian/patches/085_add_grid_plugin.patch:
- in bzr upstream tarball
-- Didier Roche <email address hidden> 2011年4月06日 19:37:45 +0200

I am using unity on a fresh install Ubuntu 12.04 with a dual monitor setup via the proprietary NVidia binary driver, and I can confirm that compiz grid still fails to properly detect the right edge (and only the right edge) of either display. I see that a fix has been committed for this bug in Compiz 0.9.4. However, it definitely still effects me in 2012 using Compiz version 0.9.7.6 from the ubuntu repos:
kmdalton@ishmael:~$ compiz --version
Compiz 0.9.7.6

Kevin, this bug is Fix Released. Please log a new bug if you still have issues.