Trying gtk-qt-engine makes xfce4 crash and restart: unfortunately then, the titlebar and borders of windows are missing and the desktop becomes unusable.
Additional information: http://www.freedesktop.org/Software/gtk-qt reproduce: - make sure you have installed: qt, gtk-qt - use switch2 or other tool to change gtk2 engine - if selected Qt, Apply - watch xfce4 crashing and comming up again - watch missing borders + titlebar of windows expected: gtk-qt works with xfce4
actually, the panel crashed - the rest comes simply with the panel more info on crash: segfault in /opt/xfce4/etc/xfce4/xinitrc on line 60: case "x$panel" in x|xno*) ;; *) $panel ret=$? while test $ret -ne 0; do xmessage -center -file - -timeout 20 -title Error <<EOF A crash occured in the panel Please report this to the xfce4-dev@moongroup.com list Meanwhile the panel will be restarted EOF cat >&2 <<EOF A crash occured in the panel Please report this to the xfce4-dev@moongroup.com list Meanwhile the panel will be restarted EOF $panel ret=$? done ;; esac what is nothing more than the panel so there are actually 2 problems with xfce4 and gtk-qt: - the panel has trouble with gtk-qt and crashes - the windows decorations + titlebar disapears if gtk-qt is used EDIT: forgot to tell: i use 4.0.6 of everything edited on: 08-19 14:26
i'm not yet convinced that this is xfce's fault. last time i tried gtk-qt, it was terribly unstable and caused a lot of apps to crash (meaning, the theme engine has problems, not that the apps do). unless you can get a backtrace from an xfce app (the panel would be best, probably), there isn't much we can do.
I'm quite sure it isn't a xfce bug. Since we don't do anything special the problem is either in gtk, or, and this is much more likely, a bug in gtk-qt. Did you try with another DE or window manager?
not using startxfce4 but only xfwm4, gtk-qt changes the color of the windows borders and all is working - unfortunately, the windows become very soon not longer managed (borders not working, no activation/background of windows - all are un-risen) also if the xfce4-panel is working separately, it do not crash, if i switch2 to Qt together (WM + panel run from startxfce4) crashes --- i tried to run xfwm4 and panel from gdb, but how can i create a backtrace if running from startxfce4 (it's a script, and no binary) other WM? i'm going to try
tried: metacity (gnome) works fine with gtk-qt with Qt selected in switch2 this experiment lead to new data: if Qt is already set as default, and then i start xfce4, the panel is working, but if i open a windows, it has no borders and i cannot rise it or do anything with it :-( i'll try to take a screenshoot of this situation
0000297-dp3.jpg should be in this bug now one thing more: the taskbar do not show any tasks, but i'm running 2 aterms (one on the other - no positioning or accessing possible) and konqueror + gimp (good that gimp + konqueror open not in position 0x0 but on their usual places, so they can still be used a little)
The missing decorations means that xfwm4 has crashed. if you could run it again from a terminal in gdb and provide a backtrace we might be able to see whats happening.
Ok, this is not a problem with Xfce. Perhaps it's related to Gtk, but most likely it's a bug in the engine.