X-Recipient:	archive-cygwin AT delorie DOT com
DomainKey-Signature:	a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id
	:list-unsubscribe:list-subscribe:list-archive:list-post
	:list-help:sender:mime-version:from:date:message-id:subject:to
	:content-type; q=dns; s=default; b=WXYdDhK0hAJraic/lElghv/gtk/Yn
	5JG3niFWlMATfO+nTYV9/2ibRNrJpA71KJRPUztmPzHIt61QNrD6BGZP3GGU0Pbs
	MEmCP0T96aDbKG2skxWF5rolv9TbfkhL8V76d1tlPFXsWsi6rEtLF7e9uLM/a772
	ERA/rt9ie+/8ZA=
DKIM-Signature:	v=1; a=rsa-sha1; c=relaxed; d=sourceware.org; h=list-id
	:list-unsubscribe:list-subscribe:list-archive:list-post
	:list-help:sender:mime-version:from:date:message-id:subject:to
	:content-type; s=default; bh=dfXdJDiDNkA3gldqtRK6HjOiU0Q=; b=ZQ7
	ntWl9F37ZRzdUDpTEoHdvZBbsrB74XlRXuaXhBEVMHTHUatzUChLsUr7wDcAZtwn
	poMs8d8pqPV+YCIgcXGvO5l0piCzJbwuEdFT7XmCFz7M8dPhE58c7WUy4bbb2iXj
	6b6b8MdQ0LlFN45GEg0lmyJLOYhkaNoJOTOr+P2k=
Mailing-List:	contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Id:	<cygwin.cygwin.com>
List-Subscribe:	<mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive:	<http://sourceware.org/ml/cygwin/>
List-Post:	<mailto:cygwin AT cygwin DOT com>
List-Help:	<mailto:cygwin-help AT cygwin DOT com>, <http://sourceware.org/ml/#faqs>
Sender:	cygwin-owner AT cygwin DOT com
Mail-Followup-To:	cygwin AT cygwin DOT com
Delivered-To:	mailing list cygwin AT cygwin DOT com
Authentication-Results:	sourceware.org; auth=none
X-Spam-SWARE-Status:	No, score=-2.4 required=5.0 tests=AWL,BAYES_00,FREEMAIL_FROM,RCVD_IN_DNSWL_NONE,SPF_PASS autolearn=ham version=3.3.1 spammy=tracker, margin
X-HELO:	mail-qt1-f174.google.com
DKIM-Signature:	v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:from:date:message-id:subject:to; bh=SmXMhnHi8iYd47WRswpHWLzzDsMH3eWNsg2yJEGi0A4=; b=skSy2s6ycV6JDwOcYaYdC8wRYdQyk8WnTTnv7Z0rFoVVa0eSKKhUSG9BtmXSGUMTrb yPHGlDzMCFdycgY8cZXfXl5FemEiXJoDrbzVhQKx60Ou6led97NbORhNZ82rbliO5fNB r13ZupEo+b/KsrromIaZTQVtAZYhL51tIOqiiEpbBYfOWHjuA9rgPnfjCGNOUfd9pIk1 ER4zRRRpIvg+N4orf2o0pOkEZQJsjQeQkp5Uf4/YjarGQ9icQrrsmq9ZQDq3rAY9aXnw wIGDe4KKfenbnosX+N0Q8H9TH6oQ2lg2A+UEAh/WW6HIGJ6hC2Zjz8c8nVApexhabBG5 IiLQ==
MIME-Version:	1.0
From:	Paul Moore <p DOT f DOT moore AT gmail DOT com>
Date:	Sun, 16 Feb 2020 12:22:10 +0000
Message-ID:	<CACac1F9k-8b2UsQ2xEuWu2okLh961BgxRY0sxySLoeL=8AgAUg@mail.gmail.com>
Subject:	Cygwin programs display output incorrectly when run under conemu
To:	cygwin AT cygwin DOT com
X-IsSubscribed:	yes

This issue has also been reported to the ConEmu tracker as
https://github.com/Maximus5/ConEmu/issues/2059.

If I run a cygwin command (for example ls, or for a simpler example,
"printf hello\nthere", although the latter needs care to get the
correct level of \n escaping :-)) newlines are displayed by the text
moving down a line, but *not* returning to the left hand margin.

An example, running in Powershell as my shell:

>E:\Utils\Cygwin64\bin\printf.exe hello\nthere
hello
     there

This behaviour is present with the latest version of cygwin1.dll, as
well as with the 20200212 snapshot. It is not present if I replace the
Cygwin dll with version 3.0.7-1.

The problem does not appear with a standard cmd.exe terminal (standard
Windows console host) or the new Windows Terminal application. I
understand that ConEmu handles the console management differently
"behind the scenes" to present a GUI front end, but I don't know
enough about the internals to know how it does that.

I can work around the issue by pinning to cygwin 3.0.7-1, but it's
obviously not ideal. I have been unable to find any details as to what
changed between cygwin 3.0.7-1 and the next version to help me track
down the issue any more specifically.

There are some notes at https://conemu.github.io/en/CygwinMsys.html
that I've read, but to be honest I don't entirely understand. I did,
however, confirm that this issue doesn't occur in a standard `cmd`
window (and I added that information to the ConEmu issue report).

Any information that would help to pin down the cause of this problem
would be very much appreciated.

Paul

--
Problem reports:       http://cygwin.com/problems.html
FAQ:                   http://cygwin.com/faq/
Documentation:         http://cygwin.com/docs.html
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple

- Raw text -