From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 2534 invoked by alias); 18 Apr 2013 15:31:42 -0000 Mailing-List: contact cygwin-xfree-help@cygwin.com; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-xfree-owner@cygwin.com Reply-To: cygwin-xfree@cygwin.com Mail-Followup-To: cygwin-xfree@cygwin.com Received: (qmail 2521 invoked by uid 89); 18 Apr 2013 15:31:42 -0000 X-Spam-SWARE-Status: No, score=3.5 required=5.0 tests=AWL,BAYES_50,FREEMAIL_FROM,RCVD_IN_DNSWL_NONE,RCVD_IN_HOSTKARMA_YE,TW_GL,TW_LX autolearn=no version=3.3.1 Received: from nm15-vm0.bullet.mail.ird.yahoo.com (HELO nm15-vm0.bullet.mail.ird.yahoo.com) (77.238.189.216) by sourceware.org (qpsmtpd/0.84/v0.84-167-ge50287c) with SMTP; Thu, 18 Apr 2013 15:31:41 +0000 Received: from [77.238.189.231] by nm15.bullet.mail.ird.yahoo.com with NNFMP; 18 Apr 2013 15:31:39 -0000 Received: from [212.82.98.79] by tm12.bullet.mail.ird.yahoo.com with NNFMP; 18 Apr 2013 15:31:39 -0000 Received: from [127.0.0.1] by omp1016.mail.ir2.yahoo.com with NNFMP; 18 Apr 2013 15:31:39 -0000 Received: (qmail 88293 invoked by uid 60001); 18 Apr 2013 15:31:39 -0000 Received: from [77.86.91.121] by web171305.mail.ir2.yahoo.com via HTTP; Thu, 18 Apr 2013 16:31:38 BST Message-ID: <1366299098.82234.YahooMailNeo@web171305.mail.ir2.yahoo.com> Date: Thu, 18 Apr 2013 15:31:00 -0000 From: Daniel Humphreys Reply-To: Daniel Humphreys Subject: OpenGL application performance and "ghost" windows remaining To: "cygwin-xfree@cygwin.com" MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable X-SW-Source: 2013-04/txt/msg00015.txt.bz2 Hi, I have installed the latest version of Cygin X server=20 (1.13.3) and trying to run a 3D OpenGL based application via ssh (PuTTY) and X11 port forwarding.=A0 My host machine is Windows Vista 32 bit and=20 am running a Lubuntu 12.10 guest VM using Virtualbox.=A0 I've started the=20 XWin server, connected to the VM using SSH and opened an xterm, set=20 LIBGL_ALWAYS_INDIRECT=3D1.=A0 Running "glxinfo |=20 grep OpenGL" tells me that I am picking up my graphics card and glxgears also appears to give me good performance (~2kfps) so believe WGL to be=20 working ok. When I try to start my OpenGL application from the=20 xterm and work through a typical use case, I appear to be getting=20 "ghost" windows left behind from windows/message boxes that appear as I=20 work through my example.=A0 These also appear when I left=20 click the left mouse and I can't find a way of getting rid of them.=A0=20 Also the performance generally seems to be a bit temperamental and=20 "flickery" between what should be displayed and these "leftover" windows depending on where I click on the screen. Have I included sufficient information?=A0 I have a couple of jpegs I could= upload if this helps. I'm thinking it could be an issue related to the second of the known issues= here: http://x.cygwin.com/docs/ug/using-aiglx.html What can I do to improve the performance of my application? Many thanks! P.S. Incidentally I know that my application works without any problems in = the latest version of Xming (7.5.0.64) but would like to try get Cygwin/X up and running to the same performance = if possible. -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://x.cygwin.com/docs/ FAQ: http://x.cygwin.com/docs/faq/