From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from NAM12-MW2-obe.outbound.protection.outlook.com (mail-mw2nam12on2100.outbound.protection.outlook.com [40.107.244.100]) by sourceware.org (Postfix) with ESMTPS id C7BD43840C14 for ; Wed, 3 Jun 2020 21:02:54 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org C7BD43840C14 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=bcMi8pgryBjuyTe/q3v67Z9K+UO9sHu8KHY6s0aClY1FTGyFMYBZng28cVId0/7bMhNYIjsU51kvbv8tDo6HNXeSGMJ9Zbec6GvaOE+5APXxROKG27bZx3qp5WbfB5WTg5sM2SCIVouKCdpNFZwvee+p7zEjbeTnVXdZtVkXiB8gbDDwklkwTh3Npk9PkmFHOnJq8c2bH1p6K3dH3Sa4qbjCKuawKzJUe/TaPnEQynWL40xiQ1cdjQkV2Q3p1ALrfIdNbn4o/vRJpIomoX7HnqX7dHugg7vgUEScKUSucpzqdTN0zt8lng9UzCmFYOyOro1utbWo6YbLEoFoDatd0w== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=tgLakM8GfX5A22VZ1tY3rqIiFY3r76nv5bLZGral40Q=; b=TPbxzMsdjJeGfpIP04ndEroHXma27JieUQYafeYmvRtFSZp5NrvWcqjZRPI9PWZbHJ6i9Qu04M5xz3Toca3wYJuLB3IhFE0WlKbP+6RDBq0dlt1iYhOsaIIujUwK5M3zm2maVwaBld63/SLWikW4pSeDJ+Yo1IfDJBaWae01QzMdhuOeEjtrODiakdZqwxyGtwO0yKsy2+Ul+loHpeLnAUdZyZmmcFok8/hOspJBECi8AXPOZ00FicQqPLrMt8Fln7TF5Z5QWyQvsjaiH9F8VCr85i87ZPvbbobcRGEA4OZlK0HOnRj59ljYyMIpFWinZ0rSEECBjXpUt4bBTe8VVA== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=cornell.edu; dmarc=pass action=none header.from=cornell.edu; dkim=pass header.d=cornell.edu; arc=none Received: from MN2PR04MB6176.namprd04.prod.outlook.com (2603:10b6:208:e3::13) by MN2PR04MB6382.namprd04.prod.outlook.com (2603:10b6:208:1a7::24) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3066.18; Wed, 3 Jun 2020 21:02:51 +0000 Received: from MN2PR04MB6176.namprd04.prod.outlook.com ([fe80::ecf5:cc00:84d8:bb6a]) by MN2PR04MB6176.namprd04.prod.outlook.com ([fe80::ecf5:cc00:84d8:bb6a%7]) with mapi id 15.20.3045.022; Wed, 3 Jun 2020 21:02:51 +0000 Subject: Re: Issue with lyx and recent dll To: cygwin@cygwin.com References: <20200528105056.GA1180@GIOVE> <2092e6a2-ee4e-65a1-68aa-589e262f439d@gmail.com> <20200528182501.GC1180@GIOVE> <20200529152949.GA113@GIOVE> <64686ad6-546c-248f-a94d-05f5309aed3b@gmail.com> <20200603203436.GA1483@GIOVE> From: Ken Brown Message-ID: Date: Wed, 3 Jun 2020 17:02:49 -0400 User-Agent: Mozilla/5.0 (Windows NT 10.0; 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I am curious to know how you compiled it, because I see >>>>> the same strange behavior when compiling lyx from source. >>>>> >>>> >>>> >>>> --enable-qt5 PYTHON="python3" >>> >>> Doh! >> >> I also patched the source to replace python with python3 in all >> the scripts. >> >>> >>> Nevertheless, it remains a mystery why I had to revert to cygwin 3.0.7 >>> for having instant preview working with the Qt4 version. >> >> No idea on this. > > I found that this is due to having defined "LyXServer pipe" in > Tools>Preferences>Paths. Specifying there the path for the fifo results > in instant preview not working. Removing it, instant preview works > again. The puzzling part is that it seems to always work on a computer > regardless of "LyXServer pipe", while it works on another one only if > the "LyXServer pipe" field is left empty. > > Instead, with cygwin 3.0.7 it seems to always work. There were some major changes in Cygwin's fifo implementation in cygwin 3.1.0. It doesn't seem to have gotten a lot of testing until fairly recently, when some bugs were discovered and fixed in cygwin 3.1.5. Have you tried the latter? (There's also some new functionality for fifos in cygwin 3.1.5, but I doubt if that's relevant to your issue.) Ken