Bug 204968

Summary:	wnck-applet gets woken up for every keypress when workspace-switcher is running
Product:	[Fedora] Fedora	Reporter:	Peter Jones <pjones>
Component:	metacity	Assignee:	Søren Sandmann Pedersen <sandmann>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	rawhide	CC:	bnocera, kem, rstrode
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2007-04-02 06:03:47 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	150225, 204948

Description Peter Jones 2006-09-01 19:27:00 UTC

Currently wnck-applet gets woken up for every keypress when workspace-switcher
is running.  This means we're taking 6 context switches per keypress, and (at
least) 3 tasks are being woken up.  That's bad.

Comment 1 Matthias Clasen 2006-09-03 01:49:42 UTC

The problem here is that 

a) libwnck listens for property changes on all toplevel windows, to catch
   icon changes, name changes, etc

b) GTK+ updates _NET_WM_USER_TIME property for every user interaction for
   focus stealing stuff

Comment 2 Matthias Clasen 2006-09-03 02:02:43 UTC

about the only fix I can see would be to add an indirection to the user time
property, by not storing it on the toplevel, but on a separate, dedicated window,
and only put the id of that window in a property on the toplevel.

Comment 3 Matthias Clasen 2006-09-03 02:03:37 UTC

This also affects metacity, btw

Comment 4 Matthias Clasen 2006-09-03 03:33:04 UTC

...and Owen pointed this problem out back in May 2003:

http://mail.gnome.org/archives/wm-spec-list/2003-May/msg00047.html

Comment 5 Matthias Clasen 2006-09-04 03:19:30 UTC

I proposed an EWMH change to fix this issue:

http://mail.gnome.org/archives/wm-spec-list/2006-September/msg00000.html

Comment 6 Søren Sandmann Pedersen 2007-03-23 17:03:21 UTC

To fix this we need to add a patch to metacity to support the new spec. This
will cause gtk+ to put the updates on a separate window, which libwnck then
won't listen to.

Moving to metacity and putting on f7 target.

Comment 7 Matthias Clasen 2007-03-27 16:54:44 UTC

The EWMH addition is in the spec now, the metacity/gtk+ patches are being
developed here: http://bugzilla.gnome.org/show_bug.cgi?id=354213

Comment 8 Matthias Clasen 2007-04-02 06:03:47 UTC

No need to keep this bug open; the gtk and metacity changes have been committed
upstream and will find its way into F8 with gnome 2.20