Closing due to the last update to this bug being 5 years old. Please
file a new bug if this still applies to recent releases of chromium-
browser.
** Changed in: chromium-browser (Ubuntu)
Status: Confirmed => Won't Fix
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https://bugs.launchpad.net/bugs/793836
Title:
Chromium occasionally renders unclosable blank ghost windows from pop-
up menus
Status in chromium-browser package in Ubuntu:
Won't Fix
Status in openbox package in Ubuntu:
Invalid
Bug description:
Binary package hint: openbox
On a Lubuntu Natty amd64 system in a Lubuntu Desktop session with
openbox 3.4.11.2-0ubuntu3, chromium-browser
11.0.696.71~r86024-0ubuntu0.11.04.1, and libgtk2.0-0 2.24.4-0ubuntu2,
unclosable, blank (light gray), borderless ghost windows sometimes
appear. These appear to be windows and not just areas where the
background or foreground elements are not being drawn, as clicking or
using the scroll wheel while the mouse pointer is a ghost window has
no effect (in particular, it does not have the effect of clicking or
scrolling in the window behind it). However, the ghost windows cannot
be switched to--clicking them does not change what window is in the
foreground. These ghost windows appear in front of regular windows,
but behind menus, which makes sense, if they are left over from menus
(as menus can typically be displayed in front of all windows,
including other menus).
This seems most often to be triggered by closing a contextual menu (or
sometimes an application menu). I think that every time it has
happened, Google Chromium was running, and at least the first ghost
window was "left behind" by a contextual menu in Chromium. I am not
sure if any other applications trigger this. Closing Chromium makes
the ghost windows go away, and they do not reappear when Chromium is
restarted. Perhaps this bug is specific to chromium-browser, or
perhaps something is going wrong in openbox as well. As detailed
below, the ghost windows are not shown when openbox is not running.
My system has the default Lubuntu configuration, so openbox is run
automatically in a Lubuntu Desktop session with the command line
"openbox --config-file /home/ek/.config/openbox/lubuntu-rc.xml". (I've
attached the file lubuntu-rc.xml.) I ran "openbox --config-file
/home/ek/.config/openbox/lubuntu-rc.xml --replace", but that did not
make the ghost windows go away. Quitting the new openbox process with
Ctrl+C (SIGINT) made the ghost windows go away, but they returned when
I restarted openbox with that same command. I quit the replacement
openbox instance again, and found that the original instance of
openbox was still running. I tried unsuccessfully to kill it with
SIGTERM; then I successfully killed it with SIGKILL. As expected, this
did not change the behavior of the windows on my desktop. Restarting
openbox once again restored the ghost windows, as expected.
I've attached three screenshots. The first shows a normal desktop,
with the ghost windows. The second shows an application (VLC) in full
screen mode, with the ghost windows, and with a contextual menu in
front of part of one of them. The third shows a desktop without the
ghost windows, achieved by running openbox with the --replace flag as
described above, then quitting the new instance with SIGINT.
ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: openbox 3.4.11.2-0ubuntu3
ProcVersionSignature: Ubuntu 2.6.38-9.43-generic 2.6.38.4
Uname: Linux 2.6.38-9-generic x86_64
Architecture: amd64
Date: Mon Jun 6 21:45:54 2011
ExecutablePath: /usr/bin/openbox
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Beta amd64 (20110413.1)
ProcEnviron:
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: openbox
UpgradeStatus: No upgrade log present (probably fresh install)
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