Just to confirm, other Java Swing apps fail to render with Compiz. Tested LogFactor5, that ships with FC6 (in the log4j-1.2.13-3jpp.2 package). This has even been compiled to native binary with gcj.
Cheers, -- Manik Surtani
Lead, JBoss Cache JBoss, a division of Red Hat
Email: msurtani@redhat.com Telephone: +44 7786 702 706 MSN: manik@surtani.org Yahoo/AIM/Skype: maniksurtani
On 20 Oct 2006, at 12:41, Manik Surtani wrote:
Hi,
another problem when using Compiz (and again works fine when using Metacity) is that running IntelliJ (commercial Java IDE, www.intellij.com) with Sun's 1.5.0 JDK doesn't render (blank screen within the pane). Keyboard shortcuts work though. :S
Interestingly, other another Java GUI I tested (not distributed with Fedora) runs fine with Compiz/Sun JDK, but this one uses the SWT UI toolkit, which may make a difference.
Again, any known issues around Java Swing GUIs and Compiz?
Cheers,
Manik Surtani
Lead, JBoss Cache JBoss, a division of Red Hat
Email: msurtani@redhat.com Telephone: +44 7786 702 706 MSN: manik@surtani.org Yahoo/AIM/Skype: maniksurtani
On Fri, 2006-10-20 at 15:12 +0100, Manik Surtani wrote:
Just to confirm, other Java Swing apps fail to render with Compiz. Tested LogFactor5, that ships with FC6 (in the log4j-1.2.13-3jpp.2 package). This has even been compiled to native binary with gcj.
It definitely seems to be restricted to a subset of Swing apps ... the only problem I've seen going through various apps (the swing demos, etc) is with jconsole ... it's main window is blank, though responsive to mouse clicks when started under compiz.
Turning off desktop effects then turning them back on while it is running (that is, switch from compiz to metacity and back) makes it OK.
The implication to me is that it is waiting for some event that it isn't getting under compiz ...
A little experimentation reveals (I wrote a program to send fake events...) reveals that the missing ingredient is a "ReparentNotify" event. Most contemporary window managers reparent the client window into a "frame window" where the decorations are drawn.
Compiz, since it is drawing everything via GL, has no need to do so it leaves the child windows as direct children of the root window.
But somewhere in the Swing or AWT code it thinks that it shouldn't draw until it gets a ReparentNotify.
Of course, a google search turns up 6429775 in the Sun bug database about the problem, which has at least that much of a diagnosis and a ton of "me toos" so I guess should have tried that first :-) There's a partial workaround mentioned there of setting AWT_TOOLKIT=MToolkit.
I don't think there really is any course of action other than waiting for Sun to fix the bug. - Owen
desktop@lists.fedoraproject.org
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Manik Surtani -
Owen Taylor