Troubleshooting: Xlib: unexpected connection setup reply from server, type 83.

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Troubleshooting: Xlib: unexpected connection setup reply from server, type 83.

My remote X display worked one minute and the next minute, I got an error message when I tried to start a X application:

  Xlib: unexpected connection setup reply from server, type 83.
  Error: Can't open display: localhost:10.0

X11 forwarding is enabled in PuTTY. And I'm running Xming on Windows. What could be the problem?

Chieh Cheng
Fri, 19 Mar 2010 18:16:26 +0000

I think the following error messages in "Xming.0.log" has something to do with the problem:

winMultiWindowXMsgProc - DISPLAY=127.0.0.1:0.0
winInitMultiWindowWM - Could not open display, try: 1, sleeping: 5
winMultiWindowXMsgProc - Could not open display, try: 1, sleeping: 5
winInitMultiWindowWM - Could not open display, try: 2, sleeping: 5
winMultiWindowXMsgProc - Could not open display, try: 2, sleeping: 5
winInitMultiWindowWM - Could not open display, try: 3, sleeping: 5
winMultiWindowXMsgProc - Could not open display, try: 3, sleeping: 5
winInitMultiWindowWM - Could not open display, try: 4, sleeping: 5
winMultiWindowXMsgProc - Could not open display, try: 4, sleeping: 5
winInitMultiWindowWM - Could not open display, try: 5, sleeping: 5
winMultiWindowXMsgProc - Could not open display, try: 5, sleeping: 5
winInitMultiWindowWM - Failed opening the display.  Exiting.
winMultiWindowXMsgProc - Failed opening the display.  Exiting.

I'm running Windows 7. I don't understand why Xming couldn't open the display on Windows 7.

Chieh Cheng
Fri, 19 Mar 2010 18:30:46 +0000

It has something to do with my WinSCP connection to my remote computer; it causes this error message when I start a X application. After closing the connection, the X forwarding works fine again. For this particular WinSCP connection, I setup SSH tunnel (within WinSCP). Maybe it has something to do with that, but I don't know see how it would have anything to do with it.

Chieh Cheng
Fri, 19 Mar 2010 18:38:47 +0000

I confirmed it has something to do with the SSH tunnel. I used WinSCP to connect to another remote host that doesn't require the SSH tunnel. Then I started a X application on that remote server and it didn't have any problems.

Chieh Cheng
Fri, 19 Mar 2010 20:10:28 +0000

Wow, man. You helped me a lot with this problem. Many thanks!

susmijor
Fri, 26 Mar 2010 15:12:15 +0000

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