Firefox and Thunderbird icons missing when alt-tabbing

[Martin Burchell]

Sometimes the icons for Firefox and Thunderbird are replaced with what I assume is a default icon when alt-tabbing.

Restarting Firefox and Thunderbird fixes the problem.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: xfce4 4.10.1
Uname: Linux 3.4.0-030400-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.5
Architecture: amd64
CurrentDesktop: XFCE
Date: Tue Dec 9 11:21:38 2014
PackageArchitecture: all
SourcePackage: xfce4
UpgradeStatus: Upgraded to trusty on 2014-11-11 (27 days ago)

[Thaddaeus Tintenfisch (thad-fisch-deactivatedaccount)]

Martin, is there a reason why your system boots with an old kernel version? Ubuntu 14.04 installs version 3.13 by default.

Back to the icon bug. When does this bug occur exactly? Does restarting the window manager via "xfwm4 --replace" fix the problem?

[Stephen Michael Kellat (skellat)]

Martin, please run the following commands and post the output:

(cat /etc/os-release ; cat /etc/lsb-release ; uname -a)

[Martin Burchell (martinb+ubuntu)]

@thad-fisch the kernel probably an artifact from my Ubuntu 12.04 installation
xfwm4 --replace closed Firefox and left the window manager in a semi-usable state where I couldn't alt-tab

@skellat
NAME="Ubuntu"
VERSION="14.04.1 LTS, Trusty Tahr"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 14.04.1 LTS"
VERSION_ID="14.04"
HOME_URL="http://www.ubuntu.com/"
SUPPORT_URL="http://help.ubuntu.com/"
BUG_REPORT_URL="http://bugs.launchpad.net/ubuntu/"
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=14.04
DISTRIB_CODENAME=trusty
DISTRIB_DESCRIPTION="Ubuntu 14.04.1 LTS"
Linux lap-e330-mb 3.4.0-030400-generic #201205210521 SMP Mon May 21 09:22:02 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux

[Thaddaeus Tintenfisch (thad-fisch-deactivatedaccount)]

Does "xfwm4 --replace" always crash Firefox and break the window manager? If you run the command in a terminal window, does it generate any output?

[Martin Burchell (martinb+ubuntu)]

@thad-fisch No the second time I ran it, Firefox didn't crash and the window manager was OK. The icons are still missing though. The command generated this output:
Gtk-Message: Failed to load module "overlay-scrollbar"
Waiting for current window manager (Xfwm4) on screen :0.0 to exit: Done

[Thaddaeus Tintenfisch (thad-fisch-deactivatedaccount)]

Most likely not related to the actual problem, but you could try to fix the Gtk message first (bug 1134202).

The next step is to install a more recent version of xfwm4 and test again. You can use one of the following PPAs or compile it from source:

https://launchpad.net/~thad-fisch/+archive/ubuntu/xfce-git
https://launchpad.net/~xubuntu-dev/+archive/ubuntu/xfce-4.12

Furthermore, I suggest that you forward this bug upstream. Thanks in advance.

https://bugzilla.xfce.org/

[Launchpad Janitor (janitor)]

[Expired for xfwm4 (Ubuntu) because there has been no activity for 60 days.]