the file xsession-errors in home directory does not help : This is what I get instantly when I click on shutdown or logout button
------------------------- encoding error : output conversion failed due to conv error, bytes 0xB4 0x75 0x62 0x75 I/O error : encoder error WARN 2012-03-04 19:35:46 unity <unknown>:0 Unable to fetch children: No such interface `org.ayatana.bamf.view' on object at path /org/ayatana/bamf/application1003059470 WARN 2012-03-04 19:35:46 unity <unknown>:0 Unable to fetch children: No such interface `org.ayatana.bamf.view' on object at path /org/ayatana/bamf/application1003059470 --------------------------------- In 11.10 the bug occured 80% of time. Now in 12.04 100%. Some believe that this is the USB 3 controller bug that causes this but I can't decipher how. It is probably related to Unity and Lightdm rather. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/891083 Title: ubuntu wont log out/shut down To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/indicator-session/+bug/891083/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs