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When trying to open a GUI-program on a SSH-Session with X11-Forwarding (both client and server have X11Forwarding activated) I get this error:

Xlib: extension "XInputExtension" missing on display ":4". Application asked to unregister timer 0x8000003 which is not registered in this thread. Fix application.

VNC to this server is working correctly.

OS: Ubuntu Server

Thanks!

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1 Answer 1

up vote 0 down vote accepted

Try using

ssh -Y

to connect to the box as explained in this post

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I'm still getting this error: Xlib: extension "RANDR" missing on display –  markus Jul 14 '11 at 17:08
    
Seems like something has changed. The RANDR extension could be needed if the app needs to go full screen. Try launching it in a window if you can. Alternatively you could use standard X Display configuration with those commands: xhost + ssh remotebox export DISPLAY=local.box.ip.address:0 gui-program After making sure your X server is listening on a TCP port (don't remember which file under /etc/ controls this, though) –  user842313 Jul 14 '11 at 23:13
    
after installing libxrandr2 ssh -Y worked –  markus Jul 28 '11 at 15:33

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