Linked by Kroc Camen on Sun 9th May 2010 12:34 UTC
Talk, Rumors, X Versus Y "Dear Ubuntu, for the last couple years life has been good. Every time I've shown you to a friend or family member, they've compared you to what they're familiar with--Windows XP or Vista, mostly--and by comparison you've looked brilliant. Yeah, your ugly brown color scheme was a bit off-putting at first, but once people saw how secure, simple, and reliable you were, the response was almost universally positive. But recently, things have changed ..."
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The keyboard combination has not been disabled, it has been moved. Now you can type Alt-SysRq-K to kill the X server.

I'm not sure 'moved' is the proper description. It's just that Ctrl+Alt+Bksp has been disabled as a result of it being a key combo that's "too easy to hit." It is set to do nothing now, so I'd consider that disabled. Which leaves the Alt+SysRq+K combo as you mentioned, which is harder to hit (and a royal pain in the ass on this Dell keyboard). Hasn't this combo been there all along? If so, it hasn't moved--it just became the new default (or only choice) since the other has been disabled.

Plus, AFAIK the Ctrl+Alt+Bksp combo sends the signal directly to X11, which may not work in certain situations. The "new" default sends a signal to the kernel to kill everything in the current virtual console, which may work in cases the other combo won't (ie., in certain types of lock-ups).

Either way, I'll continue to re-enable Ctrl+Alt+Bksp on my machines. It doesn't effect me much in the end. Moved, disabled, whatever you want to call it--the defaults have changed to safeguard against people who for some reason, somehow, managed to hit those three keys and bitched about it. My point still stands: it's a safeguard to protect users from themselves.

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