allows applications to popup above xscreensaver (which is locking the screen)

[Rafał Jędruszek]

Applications can popup above xscreensaver, while xscreesaver is locking the screen and NOTHING should be able to popup above it.

As stated on http://www.jwz.org/xscreensaver/faq.html it is a WM bug:
"You might consider this a bug in your window manager (though some consider it a feature.) If you think it's a bug, then the magic incantation to repeat to the author of your window manager is as follows: ``you should be mapping windows with XRestackWindows instead of XRaiseWindow, to ensure that managed windows always appear below override-redirect windows.''"

[Sebastien Bacher (seb128)]

do you have any example?

[Rafał Jędruszek (necui)]

PSI jabber client, KF jabber client.

'Enable popup notifications' in PSI (options/events). These popups are placed above xscreensaver window. 'KF popups windows' too.

Take a look at
http://jabberstudio.org/cgi-bin/viewcvs.cgi/cvs/kf/src/gtktip.c?rev=1.4&view=markup

There's a code from KF that shows these 'popup windows'. They are created like:
GTK_WINDOW (tip)->type = GTK_WINDOW_POPUP;

I don't know what code does this in PSI.

[Jorge Bernal (koke)]

koke@ababol ~/Devel/gnome/metacity $ grep -rcl XRaiseWindow *
koke@ababol ~/Devel/gnome/metacity $ grep -rcl XRestack *
src/stack.c

It seems that part is ok, could you offer some help for reproducing that. I think I don't see that popups when running xscreensaver (maybe on top of a fullscreen mplayer)

[Corey Burger (corey.burger)]

Does this bug still occur?

[Rafał Jędruszek (necui)]

Yeah, it still occures. Here is how I reproduced it today:

1. Psi installed on father's computer (running standard, "virgin" hoary).
2. Father's account created on jabber server.
3. Added mine jid to the roster.
4. Turned on: <menu/options/events/enable popup notifications>.
5. Screen locked, by choosing "lock screen" from AFAIR "system" menu.
6. Gone to my computer and sent a message to father's jid.

Result: the popup on father's computer (saying that new message arrived) appeared (while screen is locked).

Anyway, it's not a metacity bug? Maybe I should report it to xscreensaver authors? I use xlockmore right now (not on ubuntu) and those popups appear too, but they disappear in 0,1s. It's still a problem though...

These all is somewhat "should not happen" to me. But I don't know where the bug resists. Maybe xorg should have a mechanism that allows running one app at a time on the 'absolutely top'.

[Phil Bull (philbull)]

Does this still occur?

Bug assigned upstream (GNOME)

http://bugzilla.gnome.org/show_bug.cgi?id=154529

[Myriam Schweingruber (myriam)]

Hi
this bug seems have been forgotten. I tried to reproduce it today, running Ubuntu 6.06 and I don't see any popups when the screen is locked.

Is this still relevant or not? I would be glad to close this bug :-)

[Phil Bull (philbull)]

We use gnome-screensaver now by default so this probably explains why you can't reproduce the issue. It's possibly still an issue with xscreensaver however (which is still in main AFAIK), so we shouldn't really close the bug...

Upstream seem uninterested though. Hmmm. Could you test this with xscreensaver just to confirm?

[Sebastien Bacher (seb128)]

xscreensaver bug according to upstream

[Maftoul Samuel (samuel-maftoul)]

Mailed the upstream authors with the url of that bug.

[Jamie Zawinski (jwz)]

Not an xscreensaver bug. See
http://bugzilla.gnome.org/show_bug.cgi?id=154529

I assume what you are seeing is an OverrideRedirect window. That means it is imposible for either xscreensaver or metacity to intercept it.

[Phil Bull (philbull)]

This has been rejected upstream, with the following comment:

"It's not really possible for Jamie to fix this, nor for me to do so (as
metacity maintainer; the only way to currently avoid it that I can think of is
to patch all applications in the universe to stop using override-redirect
windows). It'd be nice to be able to manage override-redirect windows to make
them stack appropriately relative to other windows (among other things), but
override-redirect means "override any management". We'd need some kind of X
extension to fix this."

I don't think that there's any way around this I'm afraid, so I'm rejecting this bug. Sorry :(