This is Compiz issue and was introduced by this MP: https://code.launchpad.net/~3v1n0/compiz/extents-clamp- workarea/+merge/210202
That MP is protecting against bleeding the window's extents into another work area. Since the extents allow for mouse grabbing window resizing, there is a small gap allowing for the window to be resized. I don't think that MP took into account semi-maximized windows. I'll take a look and see if we can discount the extent when semi-maximized. ** Project changed: unity => compiz ** Changed in: compiz Milestone: 7.3.2 => None ** No longer affects: unity/7.2 ** Package changed: unity (Ubuntu) => compiz (Ubuntu) ** Changed in: compiz (Ubuntu) Status: Incomplete => Triaged ** Changed in: compiz (Ubuntu) Importance: Medium => Low ** Changed in: compiz Assignee: (unassigned) => Christopher Townsend (townsend) ** Changed in: compiz Milestone: None => 0.9.12.2 -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to unity in Ubuntu. https://bugs.launchpad.net/bugs/1294864 Title: window snapping to the right edge is making the windows one or two pixels too narrow Status in Compiz: Triaged Status in compiz package in Ubuntu: Triaged Bug description: Today is the first day I experience this. Window snapping has always worked perfectly on this machine. When snapping windows to the right side of the screen using either mouse or keyboard, any application's windows are not resized to fill up the screen to the right completely. vlc, nautilus, terminal, firefox, thundebird, chrome in rare cases, the resizing works correctly. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: unity 7.1.2+14.04.20140318-0ubuntu1 ProcVersionSignature: Ubuntu 3.13.0-17.37-generic 3.13.6 Uname: Linux 3.13.0-17-generic x86_64 ApportVersion: 2.13.3-0ubuntu1 Architecture: amd64 CompizPlugins: [core,bailer,detection,composite,opengl,decor,gnomecompat,resize,regex,move,compiztoolbox,vpswitch,mousepoll,place,snap,grid,imgpng,animation,workarounds,wall,unitymtgrabhandles,session,fade,expo,scale,ezoom,unityshell] CurrentDesktop: Unity Date: Wed Mar 19 22:13:18 2014 InstallationDate: Installed on 2013-12-24 (85 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20131220) SourcePackage: unity UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/compiz/+bug/1294864/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp