This system is configured, under "Login Screen Settings", to log in automatically as me (the sole user on this computer). If the system is booted cleanly no password is required. So I'm imagining this bugreport from the perspective of someone who never needs to enter a password and may not know what to type.
One day they hibernate or suspend their computer, and on returning to it they resume the machine.
Expected behaviour here: (after a pause) their desktop appears
Actual behaviour here: they see a prompt to unlock their session
I couldn't find an existing report of these symptoms but I would argue given the story above that this behaviour is overly surprising and should be seen as a bug.
DistroRelease: Ubuntu 10.04
Package: gnome-power-manager 2.30.0-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.32-18.27-server 126.96.36.199+drm33.1
Uname: Linux 2.6.32-18-server x86_64
Date: Thu Apr 1 23:16:05 2010
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: VMware, Inc. VMware Virtual Platform
ProcCmdLine: root=UUID=cf014990-4837-4bb5-9ba5-bc61ed704735 ro quiet splash
dmi.bios.vendor: Phoenix Technologies LTD
dmi.board.name: 440BX Desktop Reference Platform
dmi.board.vendor: Intel Corporation
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.vendor: No Enclosure
dmi.product.name: VMware Virtual Platform
dmi.sys.vendor: VMware, Inc.