From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 804 invoked by alias); 9 Oct 2012 01:20:59 -0000 Received: (qmail 794 invoked by uid 22791); 9 Oct 2012 01:20:58 -0000 X-SWARE-Spam-Status: No, hits=-5.2 required=5.0 tests=AWL,BAYES_00,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FROM,KHOP_RCVD_TRUST,KHOP_THREADED,RCVD_IN_DNSWL_LOW,RCVD_IN_HOSTKARMA_YE X-Spam-Check-By: sourceware.org Received: from mail-wi0-f179.google.com (HELO mail-wi0-f179.google.com) (209.85.212.179) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Tue, 09 Oct 2012 01:20:53 +0000 Received: by mail-wi0-f179.google.com with SMTP id hq7so3445358wib.2 for ; Mon, 08 Oct 2012 18:20:52 -0700 (PDT) MIME-Version: 1.0 Received: by 10.180.94.226 with SMTP id df2mr613123wib.11.1349745652240; Mon, 08 Oct 2012 18:20:52 -0700 (PDT) Received: by 10.194.92.20 with HTTP; Mon, 8 Oct 2012 18:20:52 -0700 (PDT) In-Reply-To: <5072D6C0.8070806@dronecode.org.uk> References: <5072D6C0.8070806@dronecode.org.uk> Date: Tue, 09 Oct 2012 01:20:00 -0000 Message-ID: Subject: Re: Graphical glitch in all but multiwindow mode over remote desktop From: Erik Fonnesbeck To: cygwin-xfree Content-Type: text/plain; charset=ISO-8859-1 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 X-SW-Source: 2012-10/txt/msg00004.txt.bz2 On Mon, Oct 8, 2012 at 7:36 AM, Jon TURNEY wrote: > On 04/10/2012 09:00, Erik Fonnesbeck wrote: >> This is on Windows Server 2008 R2 with desktop composition enabled >> over remote desktop and using Cygwin/X 1.12.4 (though I have not seen >> any release notes mentioning a fix for it, so I'm guessing it is still >> relevant in the current version). Windows 7 should be relevant for >> testing this bug as well. I do not recall testing without desktop >> composition enabled for the remote desktop session, and I do not know >> whether the issue is specific to Windows 7/Server 2008 R2. >> >> Multiwindow mode works fine, but all other modes draw on the taskbar >> instead of in the Cygwin/X window. I have tried various combinations >> of settings for the X server, but the behavior is the same in all >> cases. > Did you try adding '-engine 1' option to the X server command line? > > All modes apart from multiwindow use DirectX drawing by default, and there > have been reports that doesn't work correctly over RDP. > > (From my brief research, this may be related to the DirectX version which Xwin > uses. DirectX over RDP, rendering on the host, is supposed to work since > Vista, but only for DX9 or later clients, and XWin uses an older DX interface) > I was unable to reproduce this on my Windows 7 desktop, with desktop composition enabled or disabled over remote desktop (same version of Cygwin/X). It does seem to be specific to desktop composition, as it seemed to behave fine when I disabled it on the remote desktop connection to my Windows Server 2008 R2 system (which is a VM with no 3d capabilities, if that's relevant). Since it isn't used as a server, after you mentioned DirectX I decided to try installing the missing DirectX 9 files in case it would have any effect (it didn't). Adding the '-engine 1' option did make it display properly. -- 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/