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I installed xdotool in Ubuntu. But it says segmentation fault (core dumped) when I inputted command xdotool getmouselocation. How to solve it?

Olimjon
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shen xu
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  • What version of Ubuntu are you using? Are you actually running X, or another system like Wayland or Mir? – wjandrea May 11 '18 at 18:47
  • my ubuntu version is ubuntu 16.04.What is the X? – shen xu May 12 '18 at 13:52
  • https://en.wikipedia.org/wiki/X_Window_System – wjandrea May 12 '18 at 18:24
  • How to install X_Window_System in ubuntu 16.04? – shen xu May 13 '18 at 12:50
  • I had install X Window System use the command as follows: # apt-get install xserver-xorg # apt-get install x-window-system-core # dpkg-reconfigure xserver-xorg # apt-get install gnome-core # apt-get install gdm xscreensaver # apt-get install ttf-arphic* # startx .And input command "export DISPLAY=:0".Than xdotool can work now. – shen xu May 13 '18 at 23:39
  • But it has another question.Please look at the link "https://www.youtube.com/watch?v=25OTHjiVHZg".The value is x:512 y:384 of the screen coordinates,But the coordinates value is x:512 y:384 still when i change the location of mouse pointer in screen.Why the coordinates value do not change?I want get the screen coordinates current value of mouse pointer. – shen xu May 13 '18 at 23:40
  • I'm happy you got xdotool working at least! Please post that as an answer. (You can answer your own question.) As for the coordinates issue, please [ask a new question](https://askubuntu.com/questions/ask). – wjandrea May 14 '18 at 00:37
  • please look at the new question link "https://askubuntu.com/questions/1035940/i-use-xdotool-can-not-get-the-screen-coordinates-value-of-current-mouse-pointer". – shen xu May 14 '18 at 05:01

2 Answers2

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You might be using not real display. To correct this, do:

export DISPLAY=:0  
xdotool getmouselocation

If it did not work, this link might be useful.

Olimjon
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  • I had correct this: export DISPLAY=:0 xdotool getmouselocation. But it says "Error:Can't open display:(null) Failed creating new xdo instance" now. – shen xu May 12 '18 at 13:57
  • try to use `export DISPLAY=:1`, then try again – Olimjon May 12 '18 at 14:24
  • I had try to use "export DISPLAY=:1",But it says "segmentation fault (core dumped)" now. – shen xu May 13 '18 at 12:15
  • I had install X Window System use the command as follows: # apt-get install xserver-xorg # apt-get install x-window-system-core # dpkg-reconfigure xserver-xorg # apt-get install gnome-core # apt-get install gdm xscreensaver # apt-get install ttf-arphic* # startx And input command "export DISPLAY=:0".Than xdotool can work now. – shen xu May 13 '18 at 23:41
  • But it has another question.Please look at the link "https://www.youtube.com/watch?v=25OTHjiVHZg".The value is x:512 y:384 of the screen coordinates,But the coordinates value is x:512 y:384 still when i change the location of mouse pointer in screen.Why the coordinates value do not change?I want get the screen coordinates current value of mouse pointer. – shen xu May 13 '18 at 23:41
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I had to install X Window System using the commands as follows:

# apt-get install xserver-xorg 
# apt-get install x-window-system-core 
# dpkg-reconfigure xserver-xorg 
# apt-get install gnome-core 
# apt-get install gdm xscreensaver 
# apt-get install ttf-arphic*
# startx

And input command export DISPLAY=:0. xdotool works now.

wjandrea
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shen xu
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  • Please look at the new question link https://askubuntu.com/questions/1035940/i-use-xdotool-can-not-get-the-screen-coordinates-value-of-current-mouse-pointer%22 – shen xu May 15 '18 at 12:51