Full explanation of the problem for those not familiar with krb5 use with X:
Scenario: User logins in to X using krb5. Login generates TGT (ticket granting ticket) with a current timestamp with a (usually) 6-24 hour expiry time. The TGT is used to get read/write permissions to the kerberised AFS so the user can read and write their home directory. User walks away from terminal and comes back after timeout. xscreensaver asks for password and permits user to unlock terminal. Problem: xscreensaver doesn't renew the TGT, so user no longer has read or write permissions on their home directory. Userland applications crash willy-nilly. Solution: everything that asks for the krb5 password needs to renew the TGT. ** Tags added: timeout ui -- doesn't renew tgt when used with xscreensaver https://launchpad.net/bugs/49956 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs