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I need to execute some tests on a script of mine which requires a lot of CPU cycles. Is there a way to kill the GUI? I tried but it always restarts by itself.

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2 Answers

up vote 5 down vote accepted

Use

sudo service gdm stop

to stop the GUI and

sudo service gdm start

to start it again

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If you use kubuntu change gdm with kdm :) –  kv1dr May 31 '11 at 12:09
    
I'll accept yours because my question was too way specific. Actually I needed to run telinit 1 to completely disable not required processes. –  dierre May 31 '11 at 12:11
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You could open gnome-terminal and type sudo telinit 1. This would drop you to run level 1(single user mode) and kill the gui services.

bertmanphx

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it's not happening. I typed sudo init 3 but nothing changed. –  dierre May 31 '11 at 11:53
    
it was sudo telinit 1, then choose root. –  dierre May 31 '11 at 12:08
    
@bertmanphx: you are not aware of ubuntu startup process and runlevels used. –  enzotib May 31 '11 at 12:36
    
@dierre: I think it is not correct to edit answers in the core, like changing 3 to 1. This invalidates OP intentions and my objection. –  enzotib May 31 '11 at 12:42
    
Well the answer was actually useful so I thought to correct the wrong parts. –  dierre May 31 '11 at 12:43
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