x11vnc xopendisplay failed
I installed x11vnc and then execute x11vnc but failed
following is the error message
$x11vnc -display :0
08/05/2017 19:18:22 x11vnc version: 0.9.13 lastmod: 2011-08-10 pid: 7572
08/05/2017 19:18:22 XOpenDisplay(":0") failed.
08/05/2017 19:18:22 Trying again with XAUTHLOCALHOSTNAME=localhost ...
08/05/2017 19:18:22 ***************************************
08/05/2017 19:18:22 *** XOpenDisplay failed (:0)
*** x11vnc was unable to open the X DISPLAY: ":0", it cannot continue.
*** There may be "Xlib:" error messages above with details about the failure.
How can I address the error?
|| I don't know if followings are helpful but I hope so
$ps wwwaux | grep auth
root 5276 0.0 0.0 119472 8532 tty7 Ss+ 18:26 0:00 /usr/lib/xorg/Xorg -core :1 -seat seat0 -auth /var/run/lightdm/root/:1 -nolisten tcp vt7 -novtswitch
user1 7731 0.0 0.0 15504 1016 pts/3 S+ 19:21 0:00 grep --color=auto auth
user2 25420 0.0 0.0 115960 17532 ? S 4월26 0:13 Xvnc4 :10000 -desktop quad:10000 (user2) -auth /home/user2/.Xauthority -geometry 1920x1080 -depth 16 -rfbwait 30000 -rfbauth /home/user2/.vnc/passwd -rfbport 15900 -pn -fp /usr/X11R6/lib/X11/fonts/Type1/,/usr/X11R6/lib/X11/fonts/Speedo/,/usr/X11R6/lib/X11/fonts/misc/,/usr/X11R6/lib/X11/fonts/75dpi/,/usr/X11R6/lib/X11/fonts/100dpi/,/usr/share/fonts/X11/misc/,/usr/share/fonts/X11/Type1/,/usr/share/fonts/X11/75dpi/,/usr/share/fonts/X11/100dpi/ -co /etc/X11/rgb
$ls /etc/X11
app-defaults cursors default-display-manager fonts rgb.txt xinit xkb xorg.conf.failsafe Xreset Xreset.d Xresources Xsession Xsession.d Xsession.options xsm
I am using the remote server(Ubuntu 16.04)
Answer
/usr/lib/xorg/Xorg -core :1
Your X is running on :1 display, so you need to tell x11vnc that:
$ x11vnc -display :1
I think you can also do -find to try to find the user's display automatically.