Comment 58 for bug 185311

Matlab 2007b works if I use Metacity instead of Compiz. I have to start it in the terminal though and I get the same locking assertion failure message whether it works or not.

Locking assertion failure. Backtrace:
#0 /usr/lib/libxcb-xlib.so.0 [0x7f99ceaee97c]
#1 /usr/lib/libxcb-xlib.so.0(xcb_xlib_unlock+0x24) [0x7f99ceaeea84]
#2 /usr/lib/libX11.so.6(_XReply+0x10f) [0x7f99d03d7f4f]
#3 /usr/local/matlab2007b/sys/java/jre/glnxa64/jre1.6.0/lib/amd64/xawt/libmawt.so [0x7f99b2964416]
#4 /usr/local/matlab2007b/sys/java/jre/glnxa64/jre1.6.0/lib/amd64/xawt/libmawt.so [0x7f99b29471db]
#5 /usr/local/matlab2007b/sys/java/jre/glnxa64/jre1.6.0/lib/amd64/xawt/libmawt.so [0x7f99b29474ad]
#6 /usr/local/matlab2007b/sys/java/jre/glnxa64/jre1.6.0/lib/amd64/xawt/libmawt.so(Java_sun_awt_X11GraphicsEnvironment_initDisplay+0x12) [0x7f99b2947722]
#7 [0x7f99c7b00563]
Locking assertion failure. Backtrace:
#0 /usr/lib/libxcb-xlib.so.0 [0x7f99ceaee97c]
#1 /usr/lib/libxcb-xlib.so.0(xcb_xlib_lock+0x15) [0x7f99ceaeea15]
#2 /usr/lib/libX11.so.6 [0x7f99d03d7323]
#3 /usr/lib/libX11.so.6(XGetVisualInfo+0x2c) [0x7f99d03ce72c]
#4 /usr/local/matlab2007b/sys/java/jre/glnxa64/jre1.6.0/lib/amd64/xawt/libmawt.so [0x7f99b2946575]
#5 /usr/local/matlab2007b/sys/java/jre/glnxa64/jre1.6.0/lib/amd64/xawt/libmawt.so [0x7f99b29467c9]
#6 /usr/local/matlab2007b/sys/java/jre/glnxa64/jre1.6.0/lib/amd64/xawt/libmawt.so [0x7f99b294754f]
#7 /usr/local/matlab2007b/sys/java/jre/glnxa64/jre1.6.0/lib/amd64/xawt/libmawt.so(Java_sun_awt_X11GraphicsEnvironment_initDisplay+0x12) [0x7f99b2947722]
#8 [0x7f99c7b00563]

Ubuntu Hardy amd64