I have a newly installed and customised Fedora 15 box with gnome-shell-3.0.2-4, gnome-session-3.0.1 and gdm-3.0.4-1.fc15.x86_64 installed. 1. Log in 2. Click on the name at the top right, hold Alt and select shutdown 3. The "do you want to shut down" dialogue appears; click to confirm shutdown. However, the machine does not shut down. In addition, gnome-shell is now hung, in that clicking anywhere on the top bar has no effect; and the screen is still dim (as it was when the confirmation dialogue appeared). There is now no GUI way to shut the machine down; it requires typing a shutdown command or going to a text console and pressing Ctrl-Alt-Del. A similar effect appears on the gdm login screen: 1. Boot the machine 2. Press the button at the top right 3. Select "Restart" from the menu which appears. Nothing further happens; gdm-simple-greeter is now stuck and will not do anything until I kill it, so nothing on the screen is clickable any more, and it won't redraw itself if I switch to a text console and back. SELinux is disabled, incidentally. We have other F15 boxes which do work, but this one fails every time. Would appreciate some hints on how to debug this as I'm not familiar with how it's all supposed to work in GNOME 3.
OK, the root cause seems to be because console-kit-daemon is not starting up properly and so the dbus message to restart or shutdown doesn't get a reply. That's a separate investigation, then. But the bug here is that gnome-shell and gdm send the dbus message with a timeout of INT_MAX, which makes it hang forever if the ConsoleKit service is non-responsive for any reason. Is that how it should work?
I can confirm this bug for Fedora 16. SELinux is enforced. If I'll change a GDM to LXDM (as example), reboot and shutdown works fine.
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