From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 28578 invoked by alias); 29 Apr 2014 12:34:16 -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 28559 invoked by uid 89); 29 Apr 2014 12:34:15 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-0.5 required=5.0 tests=AWL,BAYES_05,RCVD_IN_DNSWL_NONE autolearn=ham version=3.3.2 X-HELO: smtpout11.bt.lon5.cpcloud.co.uk Received: from smtpout11.bt.lon5.cpcloud.co.uk (HELO smtpout11.bt.lon5.cpcloud.co.uk) (65.20.0.131) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Tue, 29 Apr 2014 12:34:13 +0000 X-CTCH-RefID: str=0001.0A090202.535F9C43.0054,ss=1,re=0.000,recu=0.000,reip=0.000,cl=1,cld=1,fgs=0 X-Junkmail-Premium-Raw: score=8/97,refid=2.7.2:2014.4.29.94222:17:8.317,ip=,rules=__MOZILLA_MSGID, __HAS_MSGID, __SANE_MSGID, __HAS_FROM, __HAS_REPLYTO, __USER_AGENT, __MOZILLA_USER_AGENT, __MIME_VERSION, __TO_MALFORMED_2, __TO_NO_NAME, __BOUNCE_CHALLENGE_SUBJ, __BOUNCE_NDR_SUBJ_EXEMPT, __IN_REP_TO, __CT, __CT_TEXT_PLAIN, __CTE, __SUBJ_ALPHA_NEGATE, __FORWARDED_MSG, BODYTEXTP_SIZE_3000_LESS, BODY_SIZE_1600_1699, __MIME_TEXT_ONLY, HTML_00_01, HTML_00_10, BODY_SIZE_5000_LESS, BODY_SIZE_2000_LESS, REPLYTO_FROM_DIFF_ADDY, BODY_SIZE_7000_LESS, NO_URI_FOUND X-CTCH-Spam: Unknown Received: from [192.168.1.93] (86.174.34.79) by smtpout11.bt.lon5.cpcloud.co.uk (8.6.100.99.10223) (authenticated as jonturney@btinternet.com) id 535F791F00025BDC; Tue, 29 Apr 2014 13:34:11 +0100 Message-ID: <535F9C3E.5000204@dronecode.org.uk> Date: Tue, 29 Apr 2014 12:34:00 -0000 From: Jon TURNEY Reply-To: cygwin-xfree@cygwin.com User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:24.0) Gecko/20100101 Thunderbird/24.4.0 MIME-Version: 1.0 To: cygwin-xfree@cygwin.com CC: cygwin@tlinx.org Subject: Re: running openGL application remotely using ssh -X and cygwin/x ,extension "NV-GLX" missing on display "localhost:10.0 References: <535B9E0F.4030109@dronecode.org.uk> <535EC1CC.6040502@tlinx.org> In-Reply-To: <535EC1CC.6040502@tlinx.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-SW-Source: 2014-04/txt/msg00011.txt.bz2 On 28/04/2014 22:02, Linda Walsh wrote: > Jon TURNEY wrote: >> Yes, this should work. > ---- > *But*, I'm pretty sure it doesn't anymore since the "Xgl" extension > that was used to transport the openGL commands between client/server > was removed from xorg's Xserver. You seem to be confusing Xgl (an X server implementation) and GLX (an X protocol extension). While they do contain the same letters in a different order, they are very different things. > AIGLX doesn't work with client's native openGL drives when the > DISPLAY isn't local. Instead, it sends full-frame-buffer updates to > simulate what would be happening -- something that "appears" to work > correctly for small OpenGL windows. But is entirely 'faked' (not > really remote openGL that used the Server's acceleration Hardware. > > Which would give you unaccelerated frame-buffer updates to simulate > the effect. Not quite what used to be available. This is also totally wrong. You are (more or less) describing how mesa's direct software rendering works (which is usually the default path for remote displays) which is completely different to AIGLX (where GL commands are sent via the GLX protocol to the X server and rendered using acceleration there) So, again, please stop spreading misinformation. I'm sure there are bugs in and limitations with OpenGL and the XWin server, but if you have a problem, please don't hijack someone else's thread, but report it in sufficient detail for me to try to reproduce it. -- Jon TURNEY Volunteer Cygwin/X X Server maintainer -- 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/