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Subject: Re: retry: Problem transfering X11 cut/copy buffer to windows and back
To: The Cygwin Mailing List <cygwin@cygwin.com>
References: <5D633C75.5020204@tlinx.org> <c76ba87e-0bbb-52e1-88c7-226d63fc515d@dronecode.org.uk> <CAK-n8j5qs15fS-cG3PrcN-ow_Yoykx9y+_8RnaUoQ9HNAQM87A@mail.gmail.com>
Cc: Jim Reisert AD1C <jjreisert@alum.mit.edu>
From: Jon Turney <jon.turney@dronecode.org.uk>
Message-ID: <d2b98ef1-199d-6999-4696-12fb8cc00732@dronecode.org.uk>
Date: Wed, 11 Sep 2019 15:52:40 +0100
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On 11/09/2019 00:17, Jim Reisert AD1C wrote:
> I didn't see this message before I posted a separate message.  Here is
> my report again.
> 
> I am using the latest test X server (1.20.5-3 built 2019-09-06),
> HOWEVER, I have seen this problem again and again for months now.
> 
> After I copy/paste enough, either from Xterm to Xterm, or Xterm to
> Windows, eventually it stops working.  I can still select text in the
> Xterm, but I'm unable to paste it into windows - nothing happens.  My
> fuzzy recollection is that copy/paste from X to X still works, but I
> forgot to test that today.
> 
> The only way I have found to fix this is to exit the X server and
> restart it.  Simply creating a new Xterm does not fix the problem.
> 
> 1.  Is there any information I can provide to help debug this problem?

A reliable way of reproducing the problem would be ideal :)

Failing that, the /var/log/xwin/XWin.0.log might be informative.

> 2.  Is there a way to reset the X server's (or maybe Windows')
> copy/paste buffer without having to close all my X windows and restart
> the server?

Not really.

You can start the X server with the '-noclipboard' option, and then run 
'xwinclip' for clipboard integration (which since it is a separate 
process, rather than a thread in the X server, can be killed and restarted).

Ideally you'd then attach gdb to xwinclip if/when it gets stuck to debug 
why that's happening. :)

-- 
Jon Turney
Volunteer Cygwin/X X Server maintainer

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