From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 73631 invoked by alias); 19 Nov 2015 12:30:33 -0000 Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Mail-Followup-To: cygwin@cygwin.com Received: (qmail 73554 invoked by uid 89); 19 Nov 2015 12:30:30 -0000 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 Received: from out5-smtp.messagingengine.com (HELO out5-smtp.messagingengine.com) (66.111.4.29) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with (AES256-GCM-SHA384 encrypted) ESMTPS; Thu, 19 Nov 2015 12:30:28 +0000 Received: from compute6.internal (compute6.nyi.internal [10.202.2.46]) by mailout.nyi.internal (Postfix) with ESMTP id 8726F20B42 for ; Thu, 19 Nov 2015 07:30:26 -0500 (EST) Received: from frontend2 ([10.202.2.161]) by compute6.internal (MEProxy); Thu, 19 Nov 2015 07:30:26 -0500 Received: from [192.168.1.102] (host86-141-129-50.range86-141.btcentralplus.com [86.141.129.50]) by mail.messagingengine.com (Postfix) with ESMTPA id 10B5268011D; Thu, 19 Nov 2015 07:30:25 -0500 (EST) Subject: Re: Fwd: Limited clipboard buffer between X11 apps and Microsoft Windows To: cygwin@cygwin.com References: From: Jon Turney Reply-To: cygwin@cygwin.com Cc: Kevin Connor Arpe Message-ID: <564DC0E1.6080004@dronecode.org.uk> Date: Thu, 19 Nov 2015 12:30:00 -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: Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-SW-Source: 2015-11/txt/msg00269.txt.bz2 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