I am running Ubuntu 12.04 LTS 64 bit version and have been experiencing the same issue. It seems that I can never input keyboard strokes and/or mouse clicks in Unity. In cinnamon (which I have installed as an additional DE) it sometimes is possible but also in this environment it does fail every now and then.
$ cat /etc/lsb-release DISTRIB_ID=Ubuntu DISTRIB_RELEASE=12.04 DISTRIB_CODENAME=precise DISTRIB_DESCRIPTION="Ubuntu 12.04.1 LTS" $ aptitude show firefox Package: firefox State: installed Automatically installed: no Version: 15.0+build1-0ubuntu0.12.04.1 I have installed oracle sun java from the wepupd8 ppa (as described here: http://www.webupd8.org/2012/01/install-oracle-java-jdk-7-in-ubuntu-via.html) and my java version is: $ java -version java version "1.7.0_07" Java(TM) SE Runtime Environment (build 1.7.0_07-b10) Java HotSpot(TM) 64-Bit Server VM (build 23.3-b01, mixed mode) If more information is required, please let me know. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/111000 Title: Keyboard doesn't work within a java applet (Sun Secure Global Destop) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/sun-java5/+bug/111000/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs