GTK Redraw Issues (was: Optimization team update (11/23 ~ 11/29))

Thomas White taw27 at
Sun Nov 30 20:26:46 CET 2008

John Lee <john_lee at> wrote:

> Julian is working on the GTK redraw issue, please help him out.

Be sure to see my previous analysis sent upstream:

The problem arises because gtk_window_move_resize() temporarily freezes
redraws on the assmption that gtk_window_configure_event() will be
called shortly afterwards, but this never happens.  It could be that
the "expected" configure_event is actually happening _before_ the
move_resize, but I don't know what the expected order is.  In fact, I
think it might not even required to be in any particular order.

I think this arises from an interaction of the specific way
Enlightenment manages things combined with the assumption mentioned
above. This would also explain why running GTK programs on Neo via X
forwarding works for me (with xfwm4 on my laptop).  It also explains
what someone described to me on IRC: that with Debian the same problems
appeared only after changing WM to Enlightenment.  They were going to
add a comment to the ticket, but don't seem to have done so yet.


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