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BadWindow error running qemu with X forwarding
Posted on 05-18-2007 02:34:00 UTC | Updated on 05-18-2007 02:34:00 UTC
Section: /software/ssh/ | Permanent Link

SSH'ed to a machine (using -X) to start a qemu session and this is the nasty error that I got

X Error of failed request:  BadWindow (invalid Window parameter)
Major opcode of failed request:  25 (X_SendEvent)
Resource id in failed request:  0x9e
Serial number of failed request:  19
Current serial number in output stream:  22

But starting xterm or xclock worked perfectly fine. So some X programs worked fine while qemu did not. Thing was it was just one machine that could not bring up qemu forwarding X through SSH. It would get the above message. The thing that was killing me is that it could bring up all other X programs fine. Finally after searching the answer was as simple as using -Y instead of -X to forward X. -Y is enables trusted X11 forwarding. Trusted X11 forwardings are not subjected to the X11 SECURITY extension controls. Go figure.

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