This bug was fixed in the package unity-2d - 5.12.0-0ubuntu1
---------------
unity-2d (5.12.0-0ubuntu1) precise-proposed; urgency=low
* New upstream release:
- unity-2d-shell crashed with SIGSEGV in ref() (LP: #968046)
- [hud] First entry always activated with keyboard navigation
(LP: #980899)
- unity-2d-shell crashes on autoscrolling on launcher tile removal
(LP: #988239)
- unity-2d-shell crashes when using with a NX server (LP: #983942)
- Dash - update Dash keyboard shortcuts so the 'CTRL + TAB' switches
between Lenses and 'TAB' by itself moves the focus between categories
(LP: #891648)
- [spread] When multiple windows of an app are open, clicking on one
doesn't bring it to the foreground (LP: #917334)
- [HUD][multi-monitor] HUD should be expanded to the left if used on a
screen without launcher (LP: #979927)
- unity-2d scope un-url-escapes values from its model (LP: #986175)
- [places] tab key does nothing (LP: #891565)
- HUD is silent to screen readers (LP: #949445)
- launcher background coloring does not get reset when using enter to
activate/start a program (LP: #965079)
- [multi-monitor] [launcher] Drag & drop application to launcher on
primary screen, other launchers not updated (LP: #966239)
- HUD gets activated by Thinkpad USB Keyboard's back and forward buttons
(LP: #968840)
- Unity 2D doesn't load 24 bit icons (LP: #977262)
- Four finger tap does not open the Dash (LP: #978659)
- No icon in launcher entry, after installing software (LP: #980640)
- Menu items displayed incorrectly when window streched over multiples
monitors (LP: #987215)
- [unity-2d-panel] The close button (potentially the others too) can
toggled even when they are not visible anymore (LP: #924264)
- When closing the Dash with the [x] panel button the last windows is not
focused and doesn't allow to use window controls. (LP: #945459)
- [launcher] item hint flickers when hovering between launcher edge and
item (LP: #948383)
- Missaligned progress bar (LP: #980609)
- Launcher tile tooltip appears in wrong screen in RTL multimonitor setups
(LP: #984080)
-- Didier Roche <[email protected]> Fri, 27 Apr 2012 09:32:40 +0200
** Changed in: unity-2d (Ubuntu)
Status: New => Fix Released
** Changed in: unity-2d (Ubuntu Precise)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/968840
Title:
HUD gets activated by Thinkpad USB Keyboard's back and forward buttons
Status in Unity 2D:
Fix Released
Status in “unity-2d” package in Ubuntu:
Fix Released
Status in “unity-2d” source package in Precise:
Fix Released
Bug description:
Test case:
1. Download attachment foo.c
(https://bugs.launchpad.net/ubuntu/+source/unity-2d/+bug/968840/+attachment/3088438/+files/foo.c)
2. Install xtst:
sudo apt-get install libxtst-dev
3. Compile the code with
g++ foo.c -o XFakeKey `pkg-config --libs --cflags x11 xtst`
4. Run ./XFakeKey Alt_L Left
-> The HUD should not appear
===
This is on Ubuntu 12.04 beta using unity-2d 5.8.0-0ubuntu1.
I use a Thinkpad USB Keyboard on my desktop, which has "back" and
"forward" buttons just above the arrow keys (as found on Thinkpad
laptops). They seem to act a bit differently to the keyboards found
on laptops though, since instead of generating their own scan codes,
they generate "Alt+Left" and "Alt+Right" key presses.
For instance, pressing the "back" button in xev results in the
following events:
KeyPress event, serial 30, synthetic NO, window 0x3a00001,
root 0x15f, subw 0x0, time 434986370, (445,143), root:(512,231),
state 0x0, keycode 64 (keysym 0xffe9, Alt_L), same_screen YES,
XLookupString gives 0 bytes:
XmbLookupString gives 0 bytes:
XFilterEvent returns: False
KeyPress event, serial 30, synthetic NO, window 0x3a00001,
root 0x15f, subw 0x0, time 434986370, (445,143), root:(512,231),
state 0x8, keycode 113 (keysym 0xff51, Left), same_screen YES,
XLookupString gives 0 bytes:
XmbLookupString gives 0 bytes:
XFilterEvent returns: False
And releasing the key results in:
KeyRelease event, serial 33, synthetic NO, window 0x3a00001,
root 0x15f, subw 0x0, time 434986498, (445,143), root:(512,231),
state 0x8, keycode 64 (keysym 0xffe9, Alt_L), same_screen YES,
XLookupString gives 0 bytes:
XFilterEvent returns: False
KeyRelease event, serial 33, synthetic NO, window 0x3a00001,
root 0x15f, subw 0x0, time 434986498, (445,143), root:(512,231),
state 0x0, keycode 113 (keysym 0xff51, Left), same_screen YES,
XLookupString gives 0 bytes:
XFilterEvent returns: False
If I press and release the key quick enough, this often has the effect
of bringing up the HUD as well as causing my web browser to navigate
to the previous page.
This behaviour is surprising to me: there is clearly a second key
press in the event stream between the "Alt" key press and release,
which I would have thought would be enough to inhibit the HUD from
popping up.
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