desktop problems after changing theme

[Olivier Fourdan]

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Lamanary Ramos de Pina wrote:
> hi list,
> i'm running xubuntu edgy here. i've changed the theme and now i can't
> start several apps (e.g. xfce4-panel, xfce4-terminal, xchat, gaim,
> thunar) and the app that controls th window (now the windows has no
> borders).
> the message i get is:
> (some_app: 5515): Gtk-WARNING **: Theme file for default has no name
> (some_app: 5515): Gtk-WARNING **: Theme file for default has no directories
> Segmentation fault

It's probably the "engine". Gtk uses "engines" to change the way widgets
are drawn. If the engine crashes, the whole application crashes.

Some engines are known to cause a crash of all gtk apps when used (like
the Qt engine w/out KDE running)

> how do i switch back to the last working theme or chose other one on the
> terminal (xterm)?

killall xfce-mcs-manager
rm $HOME/.config/xfce4/mcs_settings/gtk.xml

Then log out and log in again, w/out saving the session (if you want to
recover the apps that have died because of the engine).

HTH
Cheers,
Olivier.
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