I'm also effected by this bug, or at least by a similar bug since upgrading to Kubuntu Lucid.
When I shutdown my Maxdata Pro 8100X using the menu or from the logon screen, the computer sometimes shuts down, sometimes it doesn't. Ctrl+Alt+Del has always allowed me to reboot, and "sudo halt" in a terminal always resulted in a successful shutdown.
I'm also effected by this bug, or at least by a similar bug since upgrading to Kubuntu Lucid.
When I shutdown my Maxdata Pro 8100X using the menu or from the logon screen, the computer sometimes shuts down, sometimes it doesn't. Ctrl+Alt+Del has always allowed me to reboot, and "sudo halt" in a terminal always resulted in a successful shutdown.