X-Recipient:	archive-cygwin AT delorie DOT com
DomainKey-Signature:	a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id
	:list-unsubscribe:list-subscribe:list-archive:list-post
	:list-help:sender:subject:to:references:from:reply-to:cc
	:message-id:date:mime-version:in-reply-to:content-type
	:content-transfer-encoding; q=dns; s=default; b=N4ywT3tk4ZF/v49J
	z9TOQ2sLLzATavm0mUdBlyFxfNAxBAFd/TCi6Q5QL4aaieOVaSq+ELlqgL5u0Bck
	QzHsjDGI6/gapLR6oFvER0K6PIdsWvFHQVOQVYmmIAvH5MBppy4J4L+1dNQRH3dd
	VtwLsdCanwPkjy6JHtzhOcDCH0g=
DKIM-Signature:	v=1; a=rsa-sha1; c=relaxed; d=sourceware.org; h=list-id
	:list-unsubscribe:list-subscribe:list-archive:list-post
	:list-help:sender:subject:to:references:from:reply-to:cc
	:message-id:date:mime-version:in-reply-to:content-type
	:content-transfer-encoding; s=default; bh=wKHjy3EIffqcHZnuy4fM6Y
	Nt19A=; b=k8uMzw0Ao67O48mdRHjic1Zoh8jd5c2onzZm2EoN74++x4v1OoMcGY
	u91hmq8+FvqKZI1YeDTm448Fo1hrgPlG4qMtuLL7J5fpvLRqcai6UYEP6XSVhKii
	97T1GSbthZ8rcL+KyVJQfxrBm+sb6yv5sk/gBmo4AJbXEPq4CLKSA=
Mailing-List:	contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Id:	<cygwin.cygwin.com>
List-Subscribe:	<mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive:	<http://sourceware.org/ml/cygwin/>
List-Post:	<mailto:cygwin AT cygwin DOT com>
List-Help:	<mailto:cygwin-help AT cygwin DOT com>, <http://sourceware.org/ml/#faqs>
Sender:	cygwin-owner AT cygwin DOT com
Mail-Followup-To:	cygwin AT cygwin DOT com
Delivered-To:	mailing list cygwin AT cygwin DOT com
Authentication-Results:	sourceware.org; auth=none
X-Virus-Found:	No
X-Spam-SWARE-Status:	No, score=0.1 required=5.0 tests=AWL,BAYES_50,RCVD_IN_DNSWL_LOW,URI_HEX autolearn=no version=3.3.2
X-HELO:	out5-smtp.messagingengine.com
Subject:	Re: Fwd: Limited clipboard buffer between X11 apps and Microsoft Windows
To:	cygwin AT cygwin DOT com
References:	<CAFMYRRNBpxYc42r9eSxYOC0v43jMGMySXeh3G-ARc1YT+k1LdA AT mail DOT gmail DOT com> <CAFMYRRPPTKzy31yYybEf2b7fMB1EGkogVmrHuGA6okB8iW2J4w AT mail DOT gmail DOT com>
From:	Jon Turney <jon DOT turney AT dronecode DOT org DOT uk>
Reply-To:	cygwin AT cygwin DOT com
Cc:	Kevin Connor Arpe <kevinarpe AT gmail DOT com>
Message-ID:	<564DC0E1.6080004@dronecode.org.uk>
Date:	Thu, 19 Nov 2015 12:30:25 +0000
User-Agent:	Mozilla/5.0 (Windows NT 6.3; WOW64; rv:38.0) Gecko/20100101 Thunderbird/38.3.0
MIME-Version:	1.0
In-Reply-To:	<CAFMYRRPPTKzy31yYybEf2b7fMB1EGkogVmrHuGA6okB8iW2J4w@mail.gmail.com>

On 17/11/2015 18:57, Kevin Connor Arpe wrote:
> My issue: Copying text between X11 apps and Microsoft Windows has
> limited clipboard buffer.  My office co-worker and I were able to
> replicate the same issue on our machines.
>
> To replicate:
> 1) Run Cygwin X Server locally.
> 2) Run gedit remotely (using company Linux hosts) and redirect display
> to our local Cygwin X Server.
> 3) Copy some text in gedit, paste in Windows app, e.g. Notepad.
>
> We are able to find a limit (approximately 1000+ lines of text).  To
> be very clear:  We can copy small amounts to text, but not large
> amounts of text.
>
> My co-worker found this historical Cygwin mailing list item.  It looks
> very similar:
> http://cygwin.1069669.n5.nabble.com/emacs-x11-new-clipboard-size-limitation-td104696.html
>
> When the copy/paste fails, I see the following in /var/log/xwin/XWin.0.log:
> [298268.591] winClipboardFlushXEvents - SelectionNotify -
> X*TextPropertyToTextList returned: XConverterNotFound

Thanks for reporting this issue.

Unfortunately, I don't think this is a recurrence of the regression in 
that old report.

Briefly, there is a different protocol [1] for transferring clipboard 
contents too large to fit in a single X protocol message (approximately 
262144 bytes), which is not currently implemented by the X11/Windows 
clipboard synchronization code.

Your estimate of 1000 lines seems a little low, but in my testing this 
is the limit I hit.

[1] 
http://www.x.org/releases/X11R7.7/doc/xorg-docs/icccm/icccm.html#INCR_Properties

-- 
Jon TURNEY
Volunteer Cygwin/X X Server maintainer

--
Problem reports:       http://cygwin.com/problems.html
FAQ:                   http://cygwin.com/faq/
Documentation:         http://cygwin.com/docs.html
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple

- Raw text -