Public bug reported:
Binary package hint: gnome-panel
I'm not 100% sure this is a bug in gnome-panel or whether it's in
certain applets or it's a combination of them and the window manager.
I have a fresh install of Karmic amd64. I have two NVidia 9600 GT cards.
I'm using NVidia's driver for X from restricted. I have 2 LCD monitors
hooked up to one card using twinview so they are on one X screen. I have
one LCD monitor hooked up to the other card on its own X screen and
that's positioned to the left of the others. I configured this using
Nvidia's X Server Settings tool. I am running compiz.
Everything works great except for some bizarre behaviour on the two
standard top and bottom panels on the second X screen (I don't see this
behaviour on the primary X screen).
The first left mouse button click on either gnome-panel is handled as
I'd expect. e.g. clicking on a window on the window list applet brings
that window to the focus. If that first click doesn't cause anything
extra to show up on the panel then any further left mouse clicks will be
ignored. So for example, clicking on one window on the window list
brings that window to the front, clicking on a second window on the
window list does nothing. Clicking on the show desktop icon shows the
desktop clicking on it a second time does nothing. Clicking on the show
desktop icon to show the desktop works but then clicking on a window on
the window list straight after does nothing. Clicking on the time/date
brings up the calendar drop down but clicking on it a second time
doesn't hide it. If I move the mouse pointer outside the panel and back
in again the next left click will work. So for example if I click on the
show desktop icon, move the mouse pointer outside the panel, move it
back in again and click on the show desktop icon again it will respond
to both clicks. Also some applets on the panel seem to not experience
this problem (perhaps it depends on how they show their response to the
click) for example clicking on the menubar applet's menu titles will not
have the problem (I can click on them twice and it will show then hide
the menu), also clicking on the indicator-session-applet twice will show
and then hide the menu. Clicking on application launch icons twice will
launch the applications twice. Clicking on workspace switcher twice also
works. Also bizarrely if I click twice on an applet which manifests the
problem such that it's ignoring additional left clicks then I can still
click on one of the applets that doesn't manifest the problem and it
will see the left click. So for example clicking twice on the time/date
on the clock will have it ignore the second click (i.e. the calendar
won't close) but if I then move and keep the mouse pointer inside the
panel and click on a menu it will respond. If I click on a window title
in the window list and then click again it will ignore that and if I
then move inside the panel and click on the show desktop icon it will
ignore that but then if I move inside the panel and click on the
workspace switcher it will respond. At all times a right click will
bring up the right context menu, however.
So applets which I've seen show the odd behaviour on the panel are Show
Desktop Button, Window List and Clock. Applets/elements which don't have
the odd behaviour are the menu bar, indicator-applet-session, workspace
switcher and application launch icons.
I did a few google searches to see if anyone else had seen this
behaviour but it was tricky to know what to search for! When I get a
chance I may turn off desktop effects to see if that makes any
difference.
ProblemType: Bug
Architecture: amd64
Date: Fri Nov 27 10:03:01 2009
DistroRelease: Ubuntu 9.10
NonfreeKernelModules: nvidia
Package: gnome-panel 1:2.28.0-0ubuntu6
ProcEnviron:
LANG=en_GB.UTF-8
SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-15.50-generic
SourcePackage: gnome-panel
Uname: Linux 2.6.31-15-generic x86_64
** Affects: gnome-panel (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug
--
Panel doesn't seem to receive more than first mouse click on second on second X
screen
https://bugs.launchpad.net/bugs/489140
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