Re: Debugging Xvfb

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On Tue, 25 Sep 2007, Duncan Murdoch wrote:
I am writing some code using OpenGL, and when run under Xvfb on MacOS it dies, with the error message

X Error of failed request:  BadMatch (invalid parameter attributes)
   Major opcode of failed request:  1 (X_CreateWindow)
   Serial number of failed request:  17
   Current serial number in output stream:  19

There are a number of different reasons for which XCreateWindow() would return BadMatch. Check the man page.

I think MacOS uses the XFree86 version of Xvfb, but my first question is how can I tell for sure, and how do I determine which version I've got?

The XFree86, or X.Org, version associated with Xvfb should at the bottom of Xvfb's man page.

(I note that on the MacOS system I have access to here, X support is a mixture of various XFree86 and X.Org versions.)


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