Good day :)
I have Ubuntu installed on an encrypted LVM partition, with user auto-login and an empty gnome-keyring password (I believe that an empty gnome-keyring password on an encrypted LVM is safe... is it? :). Every 5th or 6th boot (I don't know exact number) the gnome-keyring dialog pops out and asks me for a password. It no longer accepts empty password. I tried to set the password to some non-empty string ("a" or something like that), it again worked for several boots, then again started to ask for the password. I have to enter the user's password for the dialog to disappear. So it seems to me that something is (randomly?) resetting the gnome-keyring password to match the login password.
Thanks and have a nice day!
ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: gnome-keyring 3.6.3-0ubuntu2
ProcVersionSignature: Ubuntu 3.8.0-29.42-generic 3.8.13.5
Uname: Linux 3.8.0-29-generic i686
ApportVersion: 2.9.2-0ubuntu8.3
Architecture: i386
Date: Wed Sep 4 09:02:11 2013
InstallationDate: Installed on 2013-08-03 (31 days ago)
InstallationMedia: Ubuntu-Server 13.04 "Raring Ringtail" - Release i386 (20130423.1)
MarkForUpload: True
SourcePackage: gnome-keyring
UpgradeStatus: No upgrade log present (probably fresh install)
Status changed to 'Confirmed' because the bug affects multiple users.