GNOME Panel disappears when compositing manager is turned on and eclipse is started

[Silent Smuggler]

Binary package hint: metacity

1) Ubuntu 9.04
2) metacity 1:2.25.144-0ubuntu2.1
    GNOME Panel 2.26.0

3) When compositing_manager is turned on in gconf-editor and eclipse is started all GNOME panels become invisible. I can still click and interact with them. This does not happen all the time but enough to be annoying.

These are the steps that I take to make the GNOME panels visible again after eclipse is started.
a) start gconf-editor
b) browse to apps/metacity/general
c) turn off "compositing_manager"
d) turn on "compositing_manager"

[Michael Kanis (mkanis)]

I can confirm this. It happens also in Archlinux, why I guess it's an upstream bug. However I'd say the bug is in Eclipse or in SWT, because this happens with no other applications.

[Darren (darren-hoo)]

On Sat, Oct 3, 2009 at 4:35 AM, Michael Kanis <email address hidden> wrote:
> I can confirm this. It happens also in Archlinux, why I guess it's an
> upstream bug. However I'd say the bug is in Eclipse or in SWT, because
> this happens with no other applications.

To me it also happens with chromium when changing the preferences.
with Eclipse it's 100% reproducible.

> GNOME Panel disappears when compositing manager is turned on and eclipse is started
> https://bugs.launchpad.net/bugs/396590
> You received this bug notification because you are a direct subscriber
> of the bug.
>

[Robin Stocker (nibor)]

Still there with Karmic and Eclipse 3.5.2 stream build M20091118-0800.

[Ikus-Soft (ikus-soft)]

I reconfirm the problem with both, Eclipse and Chronium. See this ticket : http://code.google.com/p/chromium/issues/detail?id=14822 The problem seams to be related to the window border.

Notice : the problem is not reproducible with Compiz. So there is something needed to be fix in metacity compositing.

Anyone may proposed a workarround ??

[Robin Stocker (nibor)]

I opened an upstream bug report with Metacity, as the problem seems to be there:
https://bugzilla.gnome.org/show_bug.cgi?id=606431

[Jan Vlnas (jnv)]

This problem appears also in Netbook Edition of Lucid Lynx, Alpha 3, without Eclipse and Chromium. Once I enable Compositing manager, the panel disappears after a while. I think it may be related to the fullscreen launcher.

[ChrisDebenham (chris-debenham)]

This problem also appears in Lucid when using the 'maximus' tool to remove title bars from maximized windows.
The gnome-panel disappears as does gkrellm.
On occasion it also looks to be causing normal maximized windows to not be exposed when switching desktops.
For some reason I can reshow the windows/panel/gkrellm but pressing Ctrl+space twice

[poetics (poetics)]

I have this problem on UNR 10.04 as well. When it happens my dock program dissapears as well (cairo dock)

[Ikus-Soft (ikus-soft)]

it's fixed in ubuntu 10.04

[Mikael Strom (mikael-sesamiq)]

This bug is still present in Ubuntu 10.10. Has any workaround been found yet?

[Miller Larson (miller-larson)]

If it lends any clues, I've experienced this same bug going back many versions of gnome I believe back to 2.26, in both Ubuntu and Gentoo, - with metacity compositing enabled.

The one thing I think I've linked it to is the use of devilspie. I use it to remove titlebars, and though I'm not familiar with it, it sounds similar to what others have seen here with maximus' undecorate.

I've also used both nvidia proprietary drivers, and nouveau thinking it might be a compositing issue with drivers. Seems to present in either case.

I don't use or have eclipse installed.