Fwd: Is disabling ctrl-alt-backspace really such a good idea?

John Moser john.r.moser at gmail.com
Thu Feb 12 05:37:40 UTC 2009

On 2/12/09, Thomas Jaeger <thjaeger at gmail.com> wrote:

>> Things that can happen:
>> * Client can grab keys but hang.
> In that case, you get the X Server back to normal by killing the client
> and you should try and fix the client.

Killing the client actually prevents X from having any input; you lose
the input until you open a similar client (i.e. qemu) that regrabs,
then close it normally so it releases.

>> * Xorg/drivers can have a bug that locks the screen.
> As I said before, I doubt C-A-B will help you there. Shift+SysRq+K
> might, though.

Happens occasionally.  Shouldn't.  It breaks X clients' ability to
talk to the screen, doesn't update the screen, so everything waiting
on X hangs; but X still picks up the C-A-B somehow and dies.

Computers will always do very strange thnigs, most of which don't make
sense and shouldn't happen.

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