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I had the same problem and solve it with the solution given in this launchpad issue. sudo aptitude reinstall libcanberra-gtk-module


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The easiest way is to delete the menu accelearators' configuration files, then restart the corresponding applications to take effect (no need to logout or reboot the system). Where are the config files The configuration files are found as accels.scm per application basis, per user. To list down all existing files for current user, run the following command ...


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I found a "solution". By default the environment variable QT_QPA_PLATFORMTHEME is being set to appmenu-qt5. Exporting kde instead fixes the problem if you try to start programs via Terminal. However even adding this to .xinitrc or something else, this will just get overridden (probably by the plugin). Meaning the changes won't be permanent. ...


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I think you might want to try following this user's response: http://ubuntuforums.org/showthread.php?t=2089790&p=12430257#post12430257 You'll have to edit the part where he points the package source to a maverick repo, to you'r current Ubuntu release (also, the gpg key part will differ). I haven't tried this out yet, but it certainly looks promising.


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I think this problem appears when Terminal is open for a long time and is not being used. Fix: Right Click inside Terminal -> Profile -> Preference -> General Tab -> Check Custom Font -> Set Font to Monospace 10pt. This is how I fixed mine.


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You haven't told g++ where to find them: by default, it only looks in the top-level /usr/include directory, whereas the headers you are trying to include are in a gtk-2.0 subdirectory. You can either add the include path manually e.g. gcc -I /usr/include/gtk-2.0 test.c or (the recommended way) use pkg-config to pull the required paths and flags directly ...


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Have you tried the command $ update-icon-caches ? That might be the one you need.


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At the terminal command prompt type: $ unity This will update your *.desktop icons in the Launcher. If the problem is not the Ubuntu Launcher but the application itself take a look http://stackoverflow.com for programming resolutions. A similar issue to this is answered at ...


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I've repackaged the given answers in this thread into a standalone example: #!/usr/bin/env python2 import signal from gi.repository import Gtk def bind_accelerator(accelerators, widget, accelerator, signal='clicked'): key, mod = Gtk.accelerator_parse(accelerator) widget.add_accelerator(signal, accelerators, key, mod, Gtk.AccelFlags.VISIBLE) def ...


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Qt5 decides the style to use based on what desktop environment is used. If it doesn't recognize the desktop environment, it falls back to a generic style. To force a specific style, you can set the QT_STYLE_OVERRIDE environment variable. Specifically, set it to gtk if you want to use the gtk theme. Qt5 applications also support the -style flag, which you can ...


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They are different ABI versions of GTK+. As mentioned in comments, some things still require GTK+ 2.x, and haven't been ported to GTK+ 3.x. Likewise, you may have both Qt 4.x and 5.x installed, as different applications require different versions.


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A solution found in this thread. For those who're facing the same issue, you can install Unity Tweak Tool from Ubuntu Software Center. But unfortunately, it won't help much as it changes the icons only, not the overall appearance. :-(



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