Gnomes 'always on top' option is disabled, and in programs like xmms which have an 'always on top' option it is ignored. Reported at https://bugs.launchpad.net/distros/ubuntu/+source/compiz/+bug/33784
I've verified that the _NET_WM_STATE_ABOVE hint that compiz supports works properly. With "gnome always-on-top option" I assume that you mean libwnck's action menu that is used by the panel taskbar and gtk-window-decorator. This is an issue in libwnck and not in compiz, if I remember correctly libwnck assumes that _NET_WM_STATE_ABOVE isn't supported when _NET_WM_ALLOWED_ACTIONS hint exists. I don't know about xmms. I guess that either it uses libwnck, is doing the same mistake as libwnck or isn't using the _NET_WM_STATE_ABOVE hint but some other hint that compiz doesn't support.
Ah, ok. Should I file a bug in bugzilla.g.o then?
Yes, please do so.
Could you please post here the Gnome bug, if you've reported it?
Sorry about the phenomenal bug spam, guys. Adding xorg-team@ to the QA contact so bugs don't get lost in future.
Should be fixed. If not, re-open on bugs.opencompositing.org
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