I'm seeing similar behavior on a Dell Latitude D830 with an external keyboard from Logitech. The previous installation of Jaunty suspended the machine when the "Suspend" button on the external keyboard was pressed, Karmic simply blanks the screen. The key is mapped to XF86Sleep as intended.
$ lspci -nn | grep VGA 00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller [8086:2a02] (rev 0c) ** Attachment added: "Xorg.0.log" http://launchpadlibrarian.net/37468306/Xorg.0.log -- [GM965/GL960] Pressing Suspend key turns off display instead of suspending https://bugs.launchpad.net/bugs/410829 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in ubuntu. _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp