This error message is still logged in Ubuntu 16.10 with KDE/plasma:
Mar 01 12:05:16 vougeot kcheckpass[23318]: pam_ecryptfs: seteuid error
and with MATE:
Mar 01 18:32:09 xeelee mate-screensaver-dialog[10367]: pam_ecryptfs: seteuid error
This error message is still logged in Ubuntu 16.10 with KDE/plasma:
Mar 01 12:05:16 vougeot kcheckpass[23318]: pam_ecryptfs: seteuid error
and with MATE:
Mar 01 18:32:09 xeelee mate-screensave r-dialog[ 10367]: pam_ecryptfs: seteuid error