Comment 35 for bug 1045914

I don't use Jeremy's ibus PPA, only GNOME3 PPA. But after the yesterday's update I was unable to start neither GNOME nor Unity, all the apps would segfault leaving such messages in dmesg:

[ 47.716480] nm-applet[2399]: segfault at 30 ip 00007f22bc896526 sp 00007fff1ea24670 error 4 in libgdk-3.so.0.600.0[7f22bc845000+7c000]
[ 49.374176] nautilus[2396]: segfault at 30 ip 00007fd4ab396526 sp 00007fff4dac6480 error 4 in libgdk-3.so.0.600.0[7fd4ab345000+7c000]
[ 56.726832] gnome-shell-cal[2478]: segfault at 30 ip 00007fa8fb61b526 sp 00007fff917aef90 error 4 in libgdk-3.so.0.600.0[7fa8fb5ca000+7c000]

Since it complains something about libgdk, I thought maybe it has something to do with the gnome-themes-standard package. And once I downgraded this package to 3.6.0.2, I was able to load both GNOME and all apps would work fine.

I wonder if it has something to do with that relocation of gtk engine files in the package for Raring and backporting this to Quantal with these files moved to /usr/lib/x86_64-linux-gnu/gtk-3.0/3.0.0/theming-engines/ and /usr/lib/x86_64-linux-gnu/gtk-2.0/2.10.0/engines/. By the way, why does this updated package have a Gtk2 theme engine file and 3.6.0.2 doesn't?