If you click on a dragable bar of a GTK3 application (i.e. primary toolbar / menubar), move the window and click at a non-dragable area, the window moves around widely without any logical direction.
How to reproduce:
Click on a dragable bar, move the window, click somewhere else in the window.
The window does not jump or move around.
-> attached video at bugzilla.gnome.org
I've reported this issue also to the GTK+ bugzilla:
This is a regression in GTK+ 3.4, I'm not able to reproduce it with 3.2.
Strange is however, it is dependent on the window manager.
This bug does occur with XFCE and GTK+ 3.4.3 but not with Gnome 3.4.
also bugreport on launchpad related to ubuntu
I'm expiiencing same problem especialy with shotwell's editing dialogs. This bug can not be reproduced with fluxbox, so I think it's xfwm's bug.
Happening for me as well. XFCE 4.10, GTK 3.4.3. Issue only occurs with GTK3 apps like Evolution. Can reproduce based on Thomas's description.
Comment https://bugzilla.gnome.org/show_bug.cgi?id=675613#c5 is key and much helpful.
Fixed in git with commit 099614e
Thanks a lot, the patch works fine. :)