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Problem opening remote X applications


I just downloaded Cygwin 64-bit for the first time. I've been using Cygwin 32-bit for years.

I'm running on Windows 7, and my Cygwin 32-bit has been working reasonably well for a long time. My only issue with it was a problem it had with my Caps Lock key. For whatever reason, focus would switch windows whenever I pressed the Caps Lock key. The caps would lock, but focus would change.

I finally decided to download the latest and greatest to see if it has been fixed. It appears that it is no longer an issue. Now I have a new problem.

I usually "ssh -X <remote>" to a remote Linux machine. I can then read mail (thunderbird), edit documents (LibreOffice 3.x), run Chrome, and edit programs (Emacs). I'll have half a dozen windows open through the X tunnel provided by ssh. Works well and lasts for hours.

After upgrading to Cygwin 64-bit (this last weekend), everything *seems* to be okay for a while. After about 20 minutes, though, I can no longer open windows remotely. Even though I have thunderbird currently open, when I try to run Chrome, I get "(google-chrome:20006): Gtk-WARNING **: cannot open display: localhost:10.0". If I try to open xclock from the command line, I get:

xclock
Error: Can't open display: localhost:10.0

Does anybody know what happened? Why has the tunnel disappeared? It hasn't actually disappeared because I'm still running thunderbird through it.

Thanks for any assistance on this.
Chris


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