X-Recipient: archive-cygwin AT delorie DOT com X-Original-To: cygwin AT cygwin DOT com Delivered-To: cygwin AT cygwin DOT com DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org A58423858417 Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=astrofoto.org Authentication-Results: sourceware.org; spf=fail smtp.mailfrom=astrofoto.org X-Authority-Reason: nr=8 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=astrofoto.org; s=default; h=Content-Transfer-Encoding:Content-Type: In-Reply-To:MIME-Version:Date:Message-ID:From:References:To:Subject:Sender: Reply-To:Cc:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help: List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=YMJCgdPum/EIsZtcmEK4kezXG8rNXH93tzVOvkEpzEM=; b=e72BwlTaBXnIURlGjL7mzM83y4 6gCmO20E1GOTCBxXr12V2deVe/bCIs+jkyyqFwPy+xAFkKmiJxxmN7EyYW+9t1Gzlg07VPoeLyqwq e54mUeSVvVEmi+CAAgNWqUEEPhDInHBKBaXK5P2xShLQ5rP/vP2COLUig04mANFo0Cdc=; Subject: Re: Cygwin/X on Windows 10 won't launch apps from .XWinrc menus To: Jon Turney , The Cygwin Mailing List References: From: Roland Roberts Organization: not very Message-ID: <8723609c-4a10-a4fd-47f7-5f4fb3c8ae48@astrofoto.org> Date: Mon, 23 Aug 2021 08:46:24 -0400 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.13.0 MIME-Version: 1.0 In-Reply-To: Content-Language: en-US X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - box2383.bluehost.com X-AntiAbuse: Original Domain - cygwin.com X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - astrofoto.org X-BWhitelist: no X-Source-IP: 104.162.85.197 X-Source-L: No X-Exim-ID: 1mI9LN-002tkE-WD X-Source: X-Source-Args: X-Source-Dir: X-Source-Sender: cpe-104-162-85-197.nyc.res.rr.com ([192.168.3.141]) [104.162.85.197]:49964 X-Source-Auth: roland AT astrofoto DOT org X-Email-Count: 10 X-Source-Cap: YXN0cm9mb3Q7YXN0cm9mb3Q7Ym94MjM4My5ibHVlaG9zdC5jb20= X-Local-Domain: yes X-Spam-Status: No, score=-3.2 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, NICE_REPLY_A, RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H2, SPF_HELO_PASS, SPF_SOFTFAIL, TXREP autolearn=ham autolearn_force=no version=3.4.4 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on server2.sourceware.org X-BeenThere: cygwin AT cygwin DOT com X-Mailman-Version: 2.1.29 Precedence: list List-Id: General Cygwin discussions and problem reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8"; Format="flowed" Errors-To: cygwin-bounces+archive-cygwin=delorie DOT com AT cygwin DOT com Sender: "Cygwin" Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from base64 to 8bit by delorie.com id 17NCktJi007171 On 8/21/2021 10:49 AM, Jon Turney wrote: > On 10/08/2021 13:58, Roland Roberts wrote: >> I have a new, company-supplied Windows 10 laptop, using Cygwin to do >> development. I’m having a problem getting XWin to launch apps. XWin >> appears to be mostly working normally, meaning if I launch a Cygwin >> mintty instance, I can manually set DISPLAY=:0.0 and start up X >> application from the shell prompt. But trying to launch from my >> .XWinrc, the application never displays and I can’t find a useful >> error log to track down the issue. I’m pretty sure it’s some >> permission someplace my account doesn’t have (and I can probably get >> IT to change that if I can just identify what it is). > > I'm not sure what the evidence for this hypothesis is? You're right, it was a complete guess since that's been where most of my problems have been with the new machine. > [...] > The process being created, but not changing command is usually > symptomatic of problems with cygwin's fork emulation (i.e. the child > process gets stuck during the complex synchronization it does with the > parent, before exec gets called) > >> Any suggestions on where to poke to diagnose this? My home Windows 10 >> machine has no problem at all. Oh, and cygcheck report version 3.1.4. >> Yes, that’s a little old, but we are stuck there until we can work >> out an issue with our build environment and the change for 3.1.5+ in >> how symlinks are handled. > > There are some suggestions about dealing with fork problems in the > FAQ, but sometimes nothing works and we don't know why. Thanks, I'll look through those suggestions. I'm still trying to figure out what the key difference in my two environments is that on Windows 10 machine works fine for this and the other doesn't. And the one where it doesn't, it only doesn't work when launched from the XWinrc menu, it works fine when launched from mintty. roland -- Roland Roberts, PhD Brooklyn, NY USA https://astrofoto.org -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation: https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple