I came across this bug in Matlab R2008a and R2009b under Ubuntu 9.04 and 9.10. The application may disappear from gnome panel if you minimize the window. If you use Alt-Tab and show desktop Ctrl-Alt-d the problem does not show up.
Switching from Compiz to Metacity $ metacity --replace fixes the problem for me. Compiz provides nice desktop effects, so I think going back to Metacity is not a solution: the solution is to fix Compiz. $ uname -a Linux zver 2.6.31-20-generic #58-Ubuntu SMP Fri Mar 12 05:23:09 UTC 2010 i686 GNU/Linux $ java -version java version "1.6.0_0" OpenJDK Runtime Environment (IcedTea6 1.6.1) (6b16-1.6.1-3ubuntu1) OpenJDK Server VM (build 14.0-b16, mixed mode) -- some windows do not appear in the window list https://bugs.launchpad.net/bugs/144406 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is a bug assignee. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
