Errors with Lightzone java and Xinerama.
If you are getting errors along the lines of:
xcb_xlib unlock: Assertion 'c->xlib.lock' failed
Then you have probably found the bug in Java about Xinerama and need to do a little fix in the jre to make sure that it does not happen. Run the following command in your lightzone installation:
sed -i 's/XINERAMA/FAKEEXTN/g' jre/lib/i386/xawt/libmawt.so
This should disable the check for Xinerama and all should work fine.
This work is licensed under a Creative Commons Attribution-ShareAlike 2.5 License.