Comment 8 for bug 329644

Additional note:

I work at a local computer store, and I've remembered to try Alt+Sysrq+k on about 4-5 machines that are booted onto the Hardy live CD at work. (We use that disk for some of our work.) On all of the various machines that I tested (different ages, makes, and models), that key combination works as expected in the TTYs, but not in X. This includes trying Alt+Sysrq+k in both the GDM login screen (after logging out), and in the Gnome session.

I don't know if the duplicate status is correct or not...