GNOME Bugzilla – Bug 654760
mutter doesn't follow icccm send _net_wm_cm_s
Last modified: 2014-12-29 03:21:56 UTC
As far as I test, my program can correct get this message from compiz/kwin, so I think the only possible reason is that mutter doesn't send it. And from the code, it seems to be true. In screen.c, the only reference to _NET_WM_CM_S? is XSetSelectionOwner, it should send client message too.
Indeed, looks like the manager selection treatment for _NET_WM_CM_Sn is pretty incomplete.
ping 255.255.255.255 Is there any developer can help on solving this problem? The initial report was submitted about half a year ago.
https://git.gnome.org/browse/mutter/commit/?id=fa97364fa842b4ef27b7cf442bf97d64303b4171