Full screen apps not scrollable with keyboard after Super key tap

[Francis Ginther]

[Impact]
Fullscreen applications can't be scrolled with the keyboard after hitting Super. Mouse scrolling still works. Hitting ESC will restore keyboard scrolling.

[Test Case]
From unity/manual-tests/WindowManagement.txt:
Fullscreen windows
--------------------
Tests rendering of fullscreen windows.

Setup:

Action:
#. Set a window to full screen. e.g. F11 in a web browser.
#. Verify you can scroll the window.
#. Tap the Super key.
#. Verify you can still scroll the window.

Expected Result:
  The fullscreen window should never look corrupt and always be scrollable.

Recovery (in case of failure):
#. Tap the Super key again.
#. Tap F11 to leave full screen.
#. Press Super+S twice to force a full screen redraw.

[Observed Results]
After tapping the Super key the window cannot be scrolled with the keyboard, only the mouse. Pressing ESC will allow keyboard scrolling to work again. Presumably, pressing Super causes the Dash to get keyboard focus even though it isn't shown, but this is just a guess.

Filed under quantal, but I also see this on Precise.

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: unity 6.2.0+bzr2633ubuntu0+762 [origin: LP-PPA-unity-team-release]
ProcVersionSignature: Ubuntu 3.5.0-13.14-generic 3.5.3
Uname: Linux 3.5.0-13-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.5.1-0ubuntu3
Architecture: amd64
CompizPlugins: [core,composite,opengl,compiztoolbox,decor,vpswitch,snap,mousepoll,resize,place,move,wall,grid,regex,imgpng,session,gnomecompat,animation,fade,unitymtgrabhandles,workarounds,scale,expo,ezoom,unityshell]
CrashDB: unity
Date: Thu Aug 30 13:44:16 2012
EcryptfsInUse: Yes
InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Alpha amd64 (20120627)
ProcEnviron:
 TERM=xterm
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: unity
UpgradeStatus: No upgrade log present (probably fresh install)

[Daniel van Vugt (vanvugt)]

This is actually bug 860970.