[Xcb] xcb_xlib.c:50: xcb_xlib_unlock: Assertion `c->xlib.lock' failed.

[Matthias Hopf]

On Oct 03, 07 09:17:31 -0500, Kay Nettle wrote:
> I looked through the archive and saw that someone had posted about 
> this problem with matlab.  I'm running X11R7.2, which I built myself, so
> it maybe something I did, on a ubuntu box,  and I still have the 
> problem.  Here is what I get doing 'matlab -Dgdb':

Standard bug in java (actually in the statically linked libXinerama of
hava). Still not fixed.


One workaround if you don't need Xinerama support:

For sun-java5-bin:
sed -i 's/XINERAMA/FAKEEXTN/g'
/usr/lib/jvm/java-1.5.0-sun-1.5.0.11/jre/lib/i386/xawt/libmawt.so

For sun-java6-bin:
sed -i 's/XINERAMA/FAKEEXTN/g'
/usr/lib/jvm/java-6-sun-1.6.0.00/jre/lib/i386/xawt/libmawt.so


Otherwise see https://bugs.freedesktop.org/show_bug.cgi?id=9336 and a
patch for libxcb in https://bugzilla.novell.com/attachment.cgi?id=122211


Matthias

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